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Kadiyala, Gayatri Nikhila; Telwatte, Sushama; Wedrychowski, Adam; Janssens, Julie; Kim, Sun Jin; Kim, Peggy; Deeks, Steven; Wong, Joseph K.; Yukl, Steven A.
AIDS, 29.04.2024
Tilføjet 29.04.2024
Objectives: Some drugs that augment cell-intrinsic defenses or modulate cell death/survival pathways have been reported to selectively kill cells infected with HIV or SIV, but comparative studies are lacking. We hypothesized that these drugs may differ in their ability to kill cells infected with intact and defective proviruses. Design: To investigate this hypothesis, drugs were tested ex vivo on Peripheral Blood Mononuclear Cells (PBMC) from nine ART-suppressed individuals. Methods: We tested drugs currently in clinical use or human trials, including auranofin (p53 modulator), interferon alpha2A, interferon gamma, acitretin (RIG-I inducer), GS-9620/vesatolimod (TLR7 agonist), nivolumab (PD-1 blocker), obatoclax (Bcl-2 inhibitor), birinapant (IAP inhibitor), bortezomib (proteasome inhibitor), and INK128/sapanisertib (mTOR[c]1/2 inhibitor). After six days of treatment, we measured cell counts/viabilities and quantified levels of total, intact, and defective HIV DNA by droplet digital PCR (Intact Proviral DNA Assay). Results: Obatoclax reduced intact HIV DNA (median = 27–30% of DMSO) but not defective or total HIV DNA. Other drugs showed no statistically significant effects. Conclusions: Obatoclax and other Bcl-2 inhibitors deserve further study in combination therapies aimed at reducing the intact HIV reservoir in order to achieve a functional cure and/or reduce HIV-associated immune activation.
Læs mere Tjek på PubMedFilip, Iulia
AIDS, 29.04.2024
Tilføjet 29.04.2024
Siyue JiaZundong YinHongxing PanFuzhen WangXiaoqiang LiuQing WangLi ZhangJihai TangHao YangJiangbo DuZhiguo WangPengfei JinZhihang PengRong TangGuodong KangXuewen WangSimin LiWeixiao WangJingxin LiHongbing ShenFengcai Zhua NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, People’s Republic of Chinab National Vaccine Innovation Platform and Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, People’s Republic of Chinac China Center for Disease Control and Prevention, Beijing, People’s Republic of Chinad Yunnan Provincial Center for Disease Control and Prevention, Kunming, People’s Republic of Chinae Chongqing Provincial Center for Disease Control and Prevention, Chongqing, People’s Republic of Chinaf Shandong Provincial Center for Disease Control and Prevention, Jinan, People’s Republic of Chinag Anhui Provincial Center for Disease Control and Prevention, Hefei, People’s Republic of Chinah Hunan Provincial Center for Disease Control and Prevention, Changsha, People’s Republic of Chinai School of Public Health, Southeast University; Nanjing, People’s Republic of Chinaj Canming Medical Technology Co., Ltd, Shanghai, People’s Republic of China
Emerg Microbes Infect, 29.04.2024
Tilføjet 29.04.2024
Coburn, Sally B.; Pimentel, Noel; Leyden, Wendy; Kitahata, Mari; Moore, Richard D.; Althoff, Keri N.; Gill, M. John; Lang, Raynell; Horberg, Michael A.; D’Souza, GypsyAmber; Hussain, Shehnaz K.; Dubrow, Robert; Novak, Richard M.; Rabkin, Charles S.; Park, Lesley S.; Sterling, Timothy R.; Neugebauer, Romain S.; Silverberg, Michael J.; for the North American AIDS Cohort Collaboration on Research and Design of the International Epidemiologic Databases to Evaluate AIDS
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: The effect of initial antiretroviral therapy (ART) class on cancer risk in people with HIV (PWH) remains unclear. Setting: Cohort study of 36,322 PWH enrolled (1996-2014) in the North American AIDS Cohort Collaboration on Research and Design. Methods: We followed individuals from ART initiation (protease inhibitor [PI]-, non-nucleoside reverse transcriptase inhibitor [NNRTI]-, or integrase strand transfer inhibitor [INSTI]-based) until incident cancer, death, loss-to-follow-up, 12/31/2014, 85 months (intention-to-treat analyses [ITT]), or 30 months (per-protocol [PP] analyses). Cancers were grouped (non-mutually exclusive) as: any cancer, AIDS-defining cancers (ADC), non-AIDS-defining cancers (NADC), any infection-related cancer, and common individual cancer types. We estimated adjusted hazard ratios (aHR) comparing cancer risk by ART class using marginal structural models emulating ITT and PP trials. Results: We observed 17,004 PWH (954 cancers) with PI-based (median 6 years follow-up), 17,536 (770 cancers) with NNRTI-based (median 5 years follow-up) and 1,782 (29 cancers) with INSTI-based ART (median 2 years follow-up). Analyses with 85 months follow-up indicated no cancer risk differences. In truncated analyses, risk of ADCs (aHR 1.33; 95% CI 1.00, 1.77 [PP-analysis]) and NADCs (aHR 1.23; 95% CI 1.00, 1.51[ITT-analysis]) were higher comparing PIs vs. NNRTIs. Conclusions: Results with longer-term follow-up suggest being on a PI- versus NNRTI-based ART regimen does not affect cancer risk. We observed shorter-term associations that should be interpreted cautiously and warrant further study. Further research with longer duration of follow-up that can evaluate INSTIs, the current first-line recommended therapy, is needed to comprehensively characterize the association between ART class and cancer risk. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedD’Antoni, Michelle L.; Andreatta, Kristen; Chang, Silvia; Cox, Stephanie; Hindman, Jason T.; Avihingsanon, Anchalee; Martin, Hal; VanderVeen, Laurie A.; Callebaut, Christian
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: In the Phase 3 ALLIANCE study, both bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) and dolutegravir plus emtricitabine/tenofovir disoproxil fumarate (DTG + F/TDF) achieved high rates of HIV-1 RNA suppression through Week 96 in adults with HIV-1 and hepatitis B virus (HBV) initiating treatment (NCT03547908). Here, we quantify preexisting HIV-1 resistance, evaluate its effect on HIV-1 virologic suppression, and describe postbaseline HIV-1 resistance through Week 96. Methods: Preexisting HIV-1 resistance was assessed by historical and/or screening genotyping. HIV-1 RNA suppression to
Læs mere Tjek på PubMedAudet, Carolyn M.; Graves, Erin; Shepherd, Bryan E.; Prigmore, Heather L.; Brooks, Hannah L.; Emílio, Almiro; Matino, Ariano; Paulo, Paula; Diemer, Matthew A.; Frisby, Michael; Sack, Daniel E.; Aboobacar, Arifo; Barreto, Ezequiel; Van Rompaey, Sara; De Schacht, Caroline
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Introduction: There is evidence that a supportive male partner facilitates maternal HIV testing during pregnancy, increases maternal ART initiation and adherence, and increases HIV-free infant survival. Most male partner engagement clinical strategies have focused on increasing uptake of couple-based HIV testing and counseling. We delivered a couple-based care and treatment intervention to improve of ART adherence in expectant couples living with HIV. Methods: We implemented a cluster randomized controlled trial for seroconcordant couples living with HIV, comparing retention (patient’s medication possession ratio) in HIV care for a couple-based care and treatment intervention versus standard of care services in rural Mozambique. The intervention included couple-based treatment, couple-based education and skills building, and couple-peer educator support. Results: We recruited 1080 couples to participate in the study. Using a linear mixed effect model with a random effect for clinic, the intervention had no impact on the medication possession ratio among women at 12 months. However, the intervention increased men’s medication ratio by 8.77%. Our unadjusted logistic regression model found the odds of an infant seroconverting in the intervention group was 30% less than in the control group, but the results were not statistically significant. Discussion: Our intervention resulted in no difference in maternal outcomes, but improved medication possession ratio among male partners. We provide a community/clinic-based treatment framework that can improve outcomes among male partners. Further work needs to be done to improve social support for pregnant women and to facilitate prevention of vertical transmission to infants among couples living with HIV. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedNeary, Jillian; Njuguna, Irene; Wagner, Anjuli D.; Richardson, Barbra A.; Chebet, Daisy; Langat, Agnes; Ngugi, Evelyn; Benki-Nugent, Sarah; Moraa, Hellen; Hawes, Stephen E.; Overbaugh, Julie; Slyker, Jennifer A.; Lehman, Dara A.; Wamalwa, Dalton; John-Stewart, Grace
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: Identifying determinants of longitudinal HIV viral load (VL) trajectories using group-based trajectory modeling (GBTM) can inform clinical strategies and mechanisms of non-adherence among children. Methods: Children under 12 months of age who were newly diagnosed with HIV were enrolled in the Optimizing Pediatric HIV Therapy (OPH; NCT00428116) from 2007-2010. Children initiated antiretroviral therapy (ART) at enrollment, and VL was assessed every 3 months for 24 months post-ART and 6-monthly thereafter up to 8 years of age. VL trajectory groups were defined using GBTM. Fisher’s exact and Kruskal-Wallis tests were used to determine correlates of each trajectory group compared to the sustained-low VL group. Results: Five VL trajectory groups were identified among 89 children with 522 VL visits from 6-24 months: sustained-low VL (63% of children), sustained-very-high (16%), sustained-high (9%), low-to-high (7%), and high-with-periods-of-low (6%). Children in the sustained-high group were more frequently on a first-line protease inhibitor (PI)-based regimen (63% vs 38%; p=0.03) and had younger caregivers (median: 22 vs 28 years; p=0.02). Among 54 children with 560 VL visits followed from 48-96 months, 5 trajectory groups were identified: sustained-low (74%), mid-range (4%), periods-of-low (7%), high-to-low (7%), and sustained-high (7%). Those in the high-to-low group had younger caregivers (21 vs 29 years; p=0.01). Conclusions: GBTM identified unique VL patterns among children with unsuppressed VL. Caregiver and regimen-related characteristics were associated with patterns of non-suppression. Younger caregivers may benefit from tailored counseling to help them support child ART adherence. Palatable regimens are necessary for viral suppression among children with HIV. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedNoorman, Maaike A.J.; de Wit, John B.F.; Marcos, Tamika A.; Stutterheim, Sarah E.; Jonas, Kai J.; Den Daas, Chantal
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Objective: As the developments towards HIV cure are gaining prominence, engagement of people with HIV (PWH) becomes crucial. This study aims to gain deeper insight into how PWH engage with HIV cure (research) by exploring their perspectives regarding awareness, importance, and meaning of HIV cure (research). Methods: Semi-structured interviews were conducted with 30 purposively sampled PWH in the Netherlands. Interviews were transcribed verbatim and thematic data analysis was undertaken. Results: The overall necessity for an HIV cure was high, but personal perceived necessity varied based on participants’ lived experiences with HIV. Most participants saw less personal necessity due to their high quality of life, while those more affected by their HIV status expressed a stronger need for a cure. Participants held high expectations for an HIV cure, considering viral eradication as the only cure. Lack of awareness of potential HIV cure strategies and techniques shaped concerns. Antiretroviral treatment-free viral suppression was met with concerns and not considered a cure, but rather an improved form of treatment. Engagement with HIV cure manifested in various forms and levels, with only a few participants actively engaged or willing to participate in HIV cure clinical research. Most participants were interested but inactive and unsure about participating in HIV cure clinical research. Conclusions: PWH’s social engagement in HIV cure (research) is shaped by their perceived necessity and concerns. Understanding these perceptions can increase social engagement. Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.
Læs mere Tjek på PubMedMurphy, Matthew; Rogers, Brooke; Galipeau, Drew; Toma, Emily; Almonte, Alexi; Napoleon, Siena; Schmid, Christopher H.; Ahluwalia, Jasjit S.; Chan, Philip
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: Pre-exposure prophylaxis (PrEP) is an effective approach to preventing HIV acquisition and is recommended for populations overrepresented in carceral systems given the overlap with populations disproportionately impacted by HIV. However, few studies have focused on PrEP initiation outcomes in a carceral setting to maximize public health impact. Setting: This study was conducted in a unified jail/prison system within the state of Rhode Island located in the United States. Methods: A prospective observational cohort of men initiating PrEP within a jail setting were enrolled in this trial. Men were referred by providers, staff, or after self-presenting for HIV preventive care, these individuals were offered enrollment in the study which involved evaluation for clinical PrEP eligibility, PrEP initiation while incarcerated, continuation upon community re-entry and linkage to a community PrEP provider post-release. Results: A total of (N=100) men in the jail facility (e.g. “intake”) were enrolled in the cohort. Of the 100 men enrolled, 83% were determined to be PrEP eligible through standard clinical evaluation, 37% were prescribed PrEP, and 26% initiated PrEP while incarcerated. In total, 5% of enrolled individuals were linked successfully to PrEP care in the community. Conclusion: Our findings suggest preliminary feasibility and acceptability of initiating PrEP within a jail setting. There were significant challenges across the PrEP care continuum that can be used to inform future studies and practice. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedMutetwa, Tinaye; Liu, Yuxin; Silvera, Richard; Evans, Michelle; Yurich, Michael; Tripodi, Joseph; Leonard, Issa; Houldsworth, Jane; Gümüş, Zeynep; Bowcock, Anne M.; Sigel, Keith; Gaisa, Michael; Polak, Paz
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
BACKGROUND: People living with HIV (PLWH) have substantially increased incidence of anal precancer and cancer. There are very little data regarding genomic disturbances in anal precancers among PLWH. Here, we identified specific chromosomal variants in anal squamous intraepithelial lesions. METHODS: We collected 63 anal biopsy specimens (27 low-grade intraepithelial lesions [LSIL] and 36 high-grade intraepithelial lesions [HSIL]) from PLWH obtained as part of anal cancer screening in our NYC-based health system. Data on patient demographics, anal cytological and high-risk human papillomavirus (HR-HPV) diagnoses were collected. Specimens were tested for a panel of chromosomal alterations associated with HPV-induced oncogenesis using Fluorescence In-Situ Hybridization (FISH) and analyses compared the associations of these alterations with clinical characteristics. RESULTS: Gains of 3q26, 5p15, 20q13 and cen7 were detected in 42%, 31%, 31%, and 19% of HSIL compared to 7%, 0%, 4%, and 0% of LSIL, respectively. Where at least one abnormality was seen, 89% had a 3q26 gain. In lesions with 5p15 gains, 20q13 gains co-occurred in 91% of cases, while cen7 gain only co-occurred with the other three alterations. Sensitivity and specificity of any alteration to predict HSIL was 47% (95% CI: 30-65%) and 93% (95% CI: 76%-99%) respectively. CONCLUSIONS: Genomic alterations seen in HPV-associated cancers may help distinguish anal LSIL from HSIL. 3q26 amplification may be an early component of anal carcinogenesis, preceding 5p16, 20q13 and/or chr7. IMPACT: We share insights on potential genomic biomarkers for discriminating high-risk anal precancers. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedRosenthal, Mark; Patterson, Wendy; Rajulu, Deepa T.
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: Late HIV diagnosis is associated with a wide range of negative outcomes. This study aims to identify characteristics of individuals who received a concurrent diagnosis (CDX) in New York State (NYS) so that more effective interventions can be developed to encourage earlier testing among these populations. Methods: The NYS HIV registry was used to identify people who received a CDX from 2016 – 2021. A CDX was a diagnosis that met the criteria for a stage 3 HIV infection within 30 days of the initial HIV diagnosis. Sex at birth, race/ethnicity, transmission risk group, age at diagnosis, region of residence at diagnosis, urbanicity of zip code of diagnosis, and type of diagnosing facility were used as covariates. Bivariate and multivariate risk ratios were calculated to quantify associations between CDX and covariates. Results: There were 14,866 people newly diagnosed with HIV in NYS from 2016 – 2021, of which 19.0% had a CDX. Those with female sex at birth, IDU, or MSM/IDU risk were less likely to have a CDX. Increased age, Asian race/ethnicity, residence outside of New York City, and diagnosis at inpatient facilities or emergency rooms were associated with an increased likelihood of a CDX. Conclusion: Populations with the highest proportions of CDX were ones that made up a small percentage of all new HIV diagnoses and may not be benefiting as much from current HIV prevention efforts. There are complex interactions between many factors including geographic and social characteristics which may lead to delayed diagnostic testing. Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.
Læs mere Tjek på PubMedWhite, Douglas AE; Godoy, Ashley; Jewett, Montana; Burns, Molly; Pinto, Cinthya Mujica; Packel, Laura J; Garcia-Chinn, Maria; Anderson, Erik S; McCoy, Sandra I
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: Emergency departments (ED) provide care to patients at increased risk for acquiring HIV and for many of them, the ED serves as their sole point of entry into the healthcare system. We implemented the HIV PreventED Program to increase access to HIV prevention services for ED patients. Setting: Emergency department in Oakland, CA with an annual census of 57,000 visits. Methods: This cross-sectional study evaluated the first 9 months of the HIV PreventED Program. In this program, a navigator surveyed adult HIV negative ED patients to determine their risk for acquiring HIV infection, incorporating HIV prevention counseling into their assessments. Patients at higher risk for acquiring HIV were referred to outpatient prevention services, if interested. The primary outcome measure was the number and proportion of ED patients at higher risk for acquiring HIV that followed up for outpatient prevention services. Results: There were 1,233 HIV negative patients assessed by the navigator and who received ED-based HIV prevention counseling. Of these, 193 (15.7%) were identified at higher risk and offered an outpatient referral for prevention services, of which 104 accepted (53.9%), 23 (11.9%) attended the referral, and 13 (6.7%) were prescribed pre-exposure prophylaxis (PrEP). The median time to linkage was 28 days (interquartile range 15 to 41 days). Conclusion: A navigator focused on providing ED-based HIV prevention counseling and linkage to outpatient services is feasible. Strategies to more efficiently identify ED patients at higher risk for HIV acquisition, such as automated identification of risk data from the electronic health record, and policies to improve follow up and the receipt of PrEP, such as same-day PrEP initiation, should be prospectively evaluated. Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.
Læs mere Tjek på PubMedBennett, Christopher L; Saxena, Monica; Boothroyd, Derek; Mahmoud-Werthmann, Sally; Lin, Michelle P
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
BECKER, Marissa; MISHRA, Sharmistha; BHATTACHARJEE, Parinita; MUSYOKI, Helgar; TENNAKOON, Aruni; LEUNG, Stella; CHEUK, Eve; LORWAY, Rob; ISAC, Shajy; MA, Huiting; CHOLETTE, Francois; SANDSTROM, Paul; GICHANGI, Peter; MWATELAH, Ruth; MCKINNON, Lyle; BLANCHARD, James; PICKLES, Michael; the Transitions Study Team
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Background: The design of HIV prevention programs for adolescent girls and young women (AGYW) are informed by data on who is at highest risk, and where they can be reached. Places (hotspots) associated with selling sex are an established outreach strategy for sex work programs, but could be used to reach other AGYW at high risk. Setting: This study took place in Mombasa, Kenya. Methods: We conducted a cross-sectional, bio-behavioural survey among (N=1,193) sexually active AGYW aged 14-24 years recruited at hotspots. We compared HIV prevalence by sub-group (sex work, SW; transactional sex, TS; and non-transactional sex, NTS), stratified by hotspot type (venues and non-venues). We examined whether associations between HIV prevalence and hotspot/subgroup remained after adjustment for individual-level risk factors, and estimated HIV prevalence ratio (PR) with and without adjustment for these individual-level factors. Results: Overall HIV prevalence was 5.6%, 5.3% in venues and 7.3% in non-venues. Overall SW HIV prevalence was two-fold higher than among participants engaged in NTS. After adjusting for age and individual-level risk factors, HIV prevalence was 2.72 times higher among venue-based SWs (95% CI: 1.56-4.85) and 2.11 times higher among non-venue AGYW not engaged in SW (95% CI: 0.97-4.30) compared to venue-based AGYW not engaged in SW. Conclusion: AGYW who sell sex remain at high risk of HIV across types of hotspots. The residual pattern of elevated HIV burden by AGWY subgroup and hotspot type suggests that unmeasured, network-level factors underscore differential risks. As such, hotspots constitute a “place” to reach AGYW at high risk of HIV. Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.
Læs mere Tjek på PubMedMcCrimmon, Tara; Collins, Lauren F.; Pereyra, Margaret; Platamone, Corbin; Perez-Brumer, Amaya; Shaffer, Victoria A.; Kerrigan, Deanna; Sheth, Anandi N; Cohen, Mardge H; Hanna, David B.; Ramirez, Catalina; Gange, Stephen J.; Rana, Aadia; Tamraz, Bani; Goparaju, Lakshmi; Wilson, Tracey E; Alcaide, Maria; Philbin, Morgan M.
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Iannone, V.; Ciccullo, A.; Moschese, D.; Giacomelli, A.; Fabbiani, M.; Lagi, F.; Papalini, C.; De Vito, A.; Cossu, M.V.; Di Giambenedetto, S.; Borghetti, A.
Journal of Acquired Immune Deficiency Syndromes, 29.04.2024
Tilføjet 29.04.2024
Infectious Disease Modelling, 29.04.2024
Tilføjet 29.04.2024
Publication date: Available online 28 April 2024 Source: Infectious Disease Modelling Author(s): Cristiano Trevisin, Lorenzo Mari, Marino Gatto, Andrea Rinaldo
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Background Herpes simplex encephalitis (HSE) is a disease with unfavorable vital and functional prognoses. There are no recent epidemiological data on HSE at a national level using real-life databases, especially in France. This study aimed to report the incidence, the clinical characteristics and outcomes of the patients with HSE. Methods We conducted a comprehensive retrospective cohort study on all patients hospitalized for HSE in France between 2015 and 2022 using national hospital discharge databases. Incidence, socio-demographic and clinical characteristics (including comorbidities, seizure, stays’ features, intensive care supports) were described. The short- (first stay) and long-term (6-month) outcomes were reported, in terms of mortality and rehospitalizations. Results 1425 HSE patients were included (median age 67 [54–77] years old, M/F sex ratio 1.07), giving a mean yearly hospital incidence of 2.3 [2.1–2.5] per 1,000,000 inhabitants. 51.2% of the patients were admitted in ICU (n = 730), of whom 59.0% were mechanically ventilated. The overall mortality during the first stay was 14.3% (n = 204), up to 17.9% for ICU patients. Within 6 months, among the survivors, 10.1% had at least one rehospitalization related to HSE. At 6 months, 16.5% of all patients had died (n = 235), 20.8% for ICU patients. Conclusion In France, the incidence of hospitalizations for HSE was 2.3 per 1,000,000 inhabitants with more than half of the patients admitted in ICU and a 6-month in-hospital mortality about 16.5%. This real-life update on the characteristics and severe outcomes of the disease raises awareness among care practitioners, of the serious nature of the disease, and thus can lead to higher vigilance.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Background The stress hyperglycemia ratio (SHR), adjusted for average glycemic status, is suggested for assessing actual blood glucose levels. Its link with adverse outcomes is known in certain populations, yet its impact on sepsis patients’ prognosis is unclear. This study explores the association between SHR and mortality in sepsis. Methods We included 13,199 sepsis patients in this study and categorized SHR into distinct groups. Additionally, we utilized restricted cubic spline analysis to evaluate the correlation between SHR as a continuous variable and mortality. The primary outcome was 1-year all-cause mortality. Logistic regression and Cox proportional hazards models were employed to assess the associations between the SHR and both in-hospital mortality and 1-year mortality, respectively. Results Among the study participants, 4,690 (35.5%) patients died during the 1-year follow-up. After adjusting for confounding variables, we identified a U-shaped correlation between SHR and 1-year mortality. Using an SHR of 0.99 as the reference point, the hazard ratio for predicted 1-year mortality increased by 1.17 (95% CI 1.08 to 1.27) per standard deviation above 0.99, whereas each standard deviation increase predicted the hazard ratio of 0.52 (95% CI 0.39 to 0.69) below 0.99. Furthermore, we found that SHR could enhance the predictive performance of conventional severity scores. Conclusion There exists a U shaped association between SHR and mortality in sepsis patients, where both low and high SHR values are associated with an increased risk of poor outcomes.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Purpose Surgery is required in 20–50% of patients with infective endocarditis (IE). Frailty increases surgical risk; however, the prognostic implications of frailty in patients undergoing IE-related surgery remain poorly understood. We aimed to assess the association between frailty and all-cause mortality or rehospitalization after discharge (≥ 14 days). Methods We identified all IE patients who underwent surgery during admission (2010–2020) in Denmark. The Hospital Frailty Risk Score was used to categorize patients into two frailty risk groups, patients with low frailty scores ( 14 days) in the first post-discharge year (19.1% vs.12.3%) compared to patients with low frailty scores. Additionally, frail patients had higher rates of all-cause mortality including in-hospital deaths (27% vs. 15%) and rehospitalizations (43.5% vs 26.1%) compared to patients with low frailty scores. This was also evident in the adjusted analysis (hazard ratio 1.36 [CI 95% 1.09–1.71]). Conclusion Frailty was associated with an ≈40% increased rate of rehospitalization (≥ 14 days) or death. Further studies are needed to assess the effectiveness of surgery with a focus on frailty to improve prognostic outcomes in these patients.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Background Meningococcal meningitis is still a severe disease causing high mortality and morbidity rates. Early diagnosis is crucial to ensure prompt antibiotic therapy. However, identification of the pathogen can be challenging. Case presentation A 32-year-old male patient with systemic lupus erythematosus (SLE) presented to the emergency room with fever, nausea, vomiting, headache and lower back pain as well as multiple petechial bleedings. On suspicion of meningococcal infection, the emergency doctor had already administered one dose of ceftriaxone before arrival to the clinic. Blood works showed massive inflammation due to bacterial infection. Cerebrospinal fluid (CSF) analysis showed normal cell count, protein and glucose levels but PCR was positive for Neisseria meningitis and IL-6 as well as IL-8 were elevated. On antibiotic therapy with ceftriaxone, the patient’s condition improved quickly. Conclusions We present a rare case of meningococcal infection of the CSF in a SLE patient without further CSF abnormalities. We discuss the involvement of early antibiotic treatment and the role of the patient’s immune status in the normal CSF findings of this case. Moreover, this case demonstrates the importance of early antibiotic therapy in bacterial meningitis for the clinical outcome.
Læs mere Tjek på PubMedBeagle, Alexander J.; Prasad, Priya A.; Hubbard, Colin C.; Walderich, Sven; Oreper, Sandra; Abe-Jones, Yumiko; Fang, Margaret C.; Kangelaris, Kirsten N.
Critical Care Explorations, 28.04.2024
Tilføjet 28.04.2024
OBJECTIVES: To evaluate the relationship between early IV fluid volume and hospital outcomes, including death in-hospital or discharge to hospice, in septic patients with and without heart failure (HF). DESIGN: A retrospective cohort study using logistic regression with restricted cubic splines to assess for nonlinear relationships between fluid volume and outcomes, stratified by HF status and adjusted for propensity to receive a given fluid volume in the first 6 hours. An ICU subgroup analysis was performed. Secondary outcomes of vasopressor use, mechanical ventilation, and length of stay in survivors were assessed. SETTING: An urban university-based hospital. PATIENTS: A total of 9613 adult patients were admitted from the emergency department from 2012 to 2021 that met electronic health record-based Sepsis-3 criteria. Preexisting HF diagnosis was identified by the International Classification of Diseases codes. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: There were 1449 admissions from patients with HF. The relationship between fluid volume and death or discharge to hospice was nonlinear in patients without HF, and approximately linear in patients with HF. Receiving 0–15 mL/kg in the first 6 hours was associated with lower likelihood of death or discharge to hospice compared with 30–45 mL/kg (odds ratio = 0.61; 95% CI, 0.41–0.90; p = 0.01) in HF patients, but no significant difference for non-HF patients. A similar pattern was identified in ICU admissions and some secondary outcomes. Volumes larger than 15–30 mL/kg for non-HF patients and 30–45 mL/kg for ICU-admitted non-HF patients were not associated with improved outcomes. CONCLUSIONS: Early fluid resuscitation showed distinct patterns of potential harm and benefit between patients with and without HF who met Sepsis-3 criteria. Restricted cubic splines analysis highlighted the importance of considering nonlinear fluid outcomes relationships and identified potential points of diminishing returns (15–30 mL/kg across all patients without HF and 30–45 mL/kg when admitted to the ICU). Receiving less than 15 mL/kg was associated with better outcomes in HF patients, suggesting small volumes may be appropriate in select patients. Future studies may benefit from investigating nonlinear fluid–outcome associations and a focus on other conditions like HF.
Læs mere Tjek på PubMedFEMS Microbiology Reviews, 28.04.2024
Tilføjet 28.04.2024
Abstract Group B Streptococcus (GBS; also known as Streptococcus agalactiae) is an opportunistic bacterial pathogen that causes sepsis, meningitis, pneumonia and skin and soft tissue infections in neonates and healthy or immunocompromised adults. GBS is well-adapted to survive in humans due to a plethora of virulence mechanisms that afford responses to support bacterial survival in dynamic host environments. These mechanisms and responses include counteraction of cell death from exposure to excess metal ions that can cause mismetallation and cytotoxicity, and strategies to combat molecules such as reactive oxygen and nitrogen species that are generated as part of innate host defence. Cytotoxicity from reactive molecules can stem from damage to proteins, DNA, and membrane lipids, potentially leading to bacterial cell death inside phagocytic cells or within extracellular spaces within the host. Deciphering the ways in which GBS responds to the stress of cytotoxic reactive molecules within the host will benefit the development of novel therapeutic and preventative strategies to manage the burden of GBS disease. This review summarises knowledge of GBS carriage in humans and the mechanisms used by the bacteria to circumvent killing by these important elements of host immune defence: oxidative stress, nitrosative stress, and stress from metal ion intoxication/mismetallation.
Læs mere Tjek på PubMedTianxu LiuYalei CaoJiaming WengSongzhan GaoZirun JinYun ZhangYuzhuo YangHe ZhangChangyou XiaXin YinYong LuoQiyu HeHui JiangLin WangZhe Zhanga Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, People’s Republic of Chinab Department of Urology, Peking University Third Hospital, Beijing, People’s Republic of Chinac Center for Reproductive Medicine, Peking University Third Hospital, Beijing, People’s Republic of Chinad Department of Andrology, Third Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of Chinae Department of Urology, Peking University First Hospital, Beijing, People’s Republic of Chinaf State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People’s Republic of China
Emerg Microbes Infect, 28.04.2024
Tilføjet 28.04.2024
Patricia Bernal
Trends in Microbiology, 28.04.2024
Tilføjet 28.04.2024
Gram-negative bacteria use the T6SS to eject effectors into prey cells, aided by delivery domains. Recently uncovered by Carobbi et al., a new delivery domain, PIX, allowed the identification of hundreds of new effectors. They are order- and function-specific and exclusively orphan effectors, raising novel questions in the field.
Læs mere Tjek på PubMedMalaria Journal, 28.04.2024
Tilføjet 28.04.2024
Abstract Background Malaria is still a disease of global public health importance and children under-five years of age are the most vulnerable to the disease. Nigeria adopted the “test and treat” strategy in the national malaria guidelines as one of the ways to control malaria transmission. The level of adherence to the guidelines is an important indicator for the success or failure of the country’s roadmap to malaria elimination by 2030. This study aimed to assess the fidelity of implementation of the national guidelines on malaria diagnosis for children under-five years and examine its associated moderating factors in health care facilities in Rivers State, Nigeria. Methods This was a descriptive, cross-sectional study conducted in Port Harcourt metropolis. Data were collected from 147 public, formal private and informal private health care facilities. The study used a questionnaire developed based on Carroll’s Conceptual Framework for Implementation Fidelity. Frequency, mean and median scores for implementation fidelity and its associated factors were calculated. Associations between fidelity and the measured predictors were examined using Mann Whitney U test, Kruskal Wallis test, and multiple linear regression modelling using robust estimation of errors. Regression results are presented in adjusted coefficient (β) and 95% confidence intervals. Results The median (IQR) score fidelity score for all participants was 65% (43.3, 85). Informal private facilities (proprietary patent medicine vendors) had the lowest fidelity scores (47%) compared to formal private (69%) and public health facilities (79%). Intervention complexity had a statistically significant inverse relationship to implementation fidelity (β = − 1.89 [− 3.42, − 0.34]). Increase in participant responsiveness (β = 8.57 [4.83, 12.32]) and the type of malaria test offered at the facility (e.g., RDT vs. no test, β = 16.90 [6.78, 27.03]; microscopy vs. no test, β = 21.88 [13.60, 30.16]) were positively associated with fidelity score. Conclusions This study showed that core elements of the “test and treat” strategy, such as testing all suspected cases with approved diagnostic methods before treatment, are still not fully implemented by health facilities. There is a need for strategies to increase fidelity, especially in the informal private health sector, for malaria elimination programme outcomes to be achieved.
Læs mere Tjek på PubMedMalaria Journal, 28.04.2024
Tilføjet 28.04.2024
Abstract Background Malaria contributes to excess child mortality in The Gambia. Children under five are at risk of severe malaria and death if not treated promptly and appropriately. It is crucial that a child with fever receive appropriate care from a trained provider. The aim was to identify influences on child fever care-seeking in The Gambia to inform malaria control strategies. Methods This cross-sectional analysis of The Gambia 2019–20 Demographic and Health Survey used logistic regression analysis to identify associations between source of care for a child with fever (public or private healthcare provider, other, or no treatment) and mother, child, and household characteristics. Results Only 52.0% of mothers sought care from a trained healthcare provider for a child with fever—45.1% from a public facility and 7.0% from the private sector. 35.2% of mothers did not seek treatment. Mothers in urban households were 2.67 times as likely (aOR, 95% CI 1.504–4.736) as mothers in rural households to seek care from an informal source (e.g., pharmacy) versus not seeking treatment, and 0.29 times as likely (aOR, 95% CI 0.165–0.515) as mothers in rural households to seek care from a public provider versus informal source. Mothers in wealthier households were 2.30 times as likely (aOR, 95% CI 1.274–4.164) as mothers in poorer households to seek care from an informal source versus no treatment and half as likely as mothers in poorer households to seek care from a public provider versus informal source (aOR 0.53, 95% CI 0.291–0.959). Conclusions Maintaining The Gambia’s malaria control achievements will require the active engagement and oversight of private pharmacies along with continued integrated community case management to reach mothers who do not seek care for a child with fever, and remove challenges to seeking appropriate care from trained providers. Whether influenced by convenience, costs, perceived urgency, or other factors, given the likelihood of urban mothers and mothers in wealthier households to seek care from private pharmacies, it will be necessary to incorporate private pharmacies into malaria control strategies while building public sector capacity and workforce, and initiating more effective attitude and behavioural change among mothers and households.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Purpose Surgery is required in 20–50% of patients with infective endocarditis (IE). Frailty increases surgical risk; however, the prognostic implications of frailty in patients undergoing IE-related surgery remain poorly understood. We aimed to assess the association between frailty and all-cause mortality or rehospitalization after discharge (≥ 14 days). Methods We identified all IE patients who underwent surgery during admission (2010–2020) in Denmark. The Hospital Frailty Risk Score was used to categorize patients into two frailty risk groups, patients with low frailty scores ( 14 days) in the first post-discharge year (19.1% vs.12.3%) compared to patients with low frailty scores. Additionally, frail patients had higher rates of all-cause mortality including in-hospital deaths (27% vs. 15%) and rehospitalizations (43.5% vs 26.1%) compared to patients with low frailty scores. This was also evident in the adjusted analysis (hazard ratio 1.36 [CI 95% 1.09–1.71]). Conclusion Frailty was associated with an ≈40% increased rate of rehospitalization (≥ 14 days) or death. Further studies are needed to assess the effectiveness of surgery with a focus on frailty to improve prognostic outcomes in these patients.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Background Meningococcal meningitis is still a severe disease causing high mortality and morbidity rates. Early diagnosis is crucial to ensure prompt antibiotic therapy. However, identification of the pathogen can be challenging. Case presentation A 32-year-old male patient with systemic lupus erythematosus (SLE) presented to the emergency room with fever, nausea, vomiting, headache and lower back pain as well as multiple petechial bleedings. On suspicion of meningococcal infection, the emergency doctor had already administered one dose of ceftriaxone before arrival to the clinic. Blood works showed massive inflammation due to bacterial infection. Cerebrospinal fluid (CSF) analysis showed normal cell count, protein and glucose levels but PCR was positive for Neisseria meningitis and IL-6 as well as IL-8 were elevated. On antibiotic therapy with ceftriaxone, the patient’s condition improved quickly. Conclusions We present a rare case of meningococcal infection of the CSF in a SLE patient without further CSF abnormalities. We discuss the involvement of early antibiotic treatment and the role of the patient’s immune status in the normal CSF findings of this case. Moreover, this case demonstrates the importance of early antibiotic therapy in bacterial meningitis for the clinical outcome.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract This case report highlights a case of a 65-year-old woman who presented to our clinic with suspicion of refractory scabies. She had undergone multiple treatments without improvement. However, the clinical condition was not scabies but rather Gianotti–Crosti Syndrome (GCS), leading to rapid clinical improvement and avoiding the need for further unnecessary tests and treatments. GCS is a postviral exanthem characterized by symmetrical, red papules on the extremities and buttocks, typically occurring in children but can also affect adults. It is crucial for every physician to distinguish it from other causes of rash, including scabies, to ensure an accurate diagnosis and appropriate management.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Nocardia is a genus of aerobic, Gram-positive bacteria known for their filamentous and branching morphology. N. brasiliensis is the most common species causing cutaneous nocardiosis. We present a 67-year-old woman who developed abscesseson the back of her right ankle after walking barefoot on soil. Cultures from the cutaneous lesions grew N. brasiliensis. Antibiotic therapy with trimethoprim-sulfamethoxazole given for a month provided near-complete resolution of her lesions.
Læs mere Tjek på PubMedInfection, 28.04.2024
Tilføjet 28.04.2024
Abstract Background Melioidosis is a bacterial infection associated with high mortality. The diagnostic approach to this rare disease in Europe is challenging, especially because pulmonary manifestation of melioidosis can mimic pulmonary tuberculosis (TB). Antibiotic therapy of melioidosis consists of an initial intensive phase of 2–8 weeks followed by an eradication therapy of 3–6 months. Case presentation We present the case of a 46-year-old female patient with pulmonary melioidosis in Germany. The patient showed chronic cough, a pulmonary mass and a cavitary lesion, which led to the initial suspicion of pulmonary TB. Melioidosis was considered due to a long-term stay in Thailand with recurrent exposure to rice fields. Results Microbiologic results were negative for TB. Histopathology of an endobronchial tumor showed marked chronic granulation tissue and fibrinous inflammation. Melioidosis was diagnosed via polymerase chain reaction by detection of Burkholderia pseudomallei/mallei target from mediastinal lymph-node tissue. Conclusion This case report emphasizes that melioidosis is an important differential diagnosis in patients with suspected pulmonary tuberculosis and recent travel to South-East Asia.
Læs mere Tjek på PubMedInfectious Disease Modelling, 27.04.2024
Tilføjet 27.04.2024
Publication date: Available online 26 April 2024 Source: Infectious Disease Modelling Author(s): Binod Pant, Abba B. Gumel
Læs mere Tjek på PubMedKassoum Kayentao, Aissata Ongoiba, Anne C. Preston, Sara A. Healy, Zonghui Hu, Jeff Skinner, Safiatou Doumbo, Jing Wang, Hamidou Cisse, Didier Doumtabe, Abdrahamane Traore, Hamadi Traore, Adama Djiguiba, Shanping Li, Mary E. Peterson, Shinyi Telscher, Azza H. Idris, William C. Adams, Adrian B. McDermott, Sandeep Narpala, Bob C. Lin, Leonid Serebryannyy, Somia P. Hickman, Andrew J. McDougal, Sandra Vazquez, Matthew Reiber, Judy A. Stein, Jason G. Gall, Kevin Carlton, Philipp Schwabl, Siriman Traore, Mamadou Keita, Amatigué Zéguimé, Adama Ouattara, M’Bouye Doucoure, Amagana Dolo, Sean C. Murphy, Daniel E. Neafsey, Silvia Portugal, Abdoulaye Djimdé, Boubacar Traore, Robert A. Seder, and Peter D. Cromptonthe Mali Malaria mAb Trial Team*From the Malaria Research and Training Center, Mali International Center of Excellence in Research, University of Sciences, Techniques, and Technologies of Bamako, Bamako, Mali (K.K., A. Ongoiba, S.D., D.D., A.T., H.T., A. Djiguiba, S. Traore, M.K., A.Z., A. Ouattara, M.D., A. Dolo, A. Djimdé, B.T.); the Malaria Infection Biology and Immunity Section, Laboratory of Immunogenetics, Division of Intramural Research (A.C.P., S.A.H., J.S., H.C., S.L., M.E.P., P.D.C.), and the Biostatistics Research Branch, Division of Clinical Research (Z.H.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, the Vaccine Research Center (S. Telscher, A.H.I., W.C.A., A.B.M., S.N., B.C.L., L.S., S.P.H., A.J.M., S.V., M.R., J.A.S., J.G.G., K.C., R.A.S.), National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, and the Clinical Monitoring Research Program Directorate, Frederick National Laboratory for Cancer Research, Frederick (J.W.) — all in Maryland; the Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston (P.S., D.E.N.); the Malaria Molecular Diagnostic Laboratory, Department of Laboratory Medicine and Pathology, and the Center for Emerging and Re-emerging Infectious Diseases, University of Washington, Seattle (S.C.M.); and the Max Planck Institute for Infection Biology, Berlin (S.P.).
New England Journal of Medicine, 27.04.2024
Tilføjet 27.04.2024
Trevor MundelFrom the Bill and Melinda Gates Foundation, Seattle.
New England Journal of Medicine, 27.04.2024
Tilføjet 27.04.2024
Immunity, 27.04.2024
Tilføjet 27.04.2024
Publication date: Available online 26 April 2024 Source: Immunity Author(s): Jingyun Luan, Cynthia Truong, Aleksandra Vuchkovska, Weijie Guo, Jennifer Good, Bijun Liu, Audrey Gang, Nicole Infarinato, Katherine Stewart, Lisa Polak, Hilda Amalia Pasolli, Emma Andretta, Alexander Y. Rudensky, Elaine Fuchs, Yuxuan Miao
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Background Patients infected with Acinetobacter baumannii (AB) bacteremia in hospital have high morbidity and mortality. We analyzed the clinical characteristics of pneumonia and nonpneumonia-related AB bloodstream infections (AB BSIs) and explored the possible independent risk factors for the incidence and prognosis of pneumonia-related AB BSIs. Methods A retrospective monocentric observational study was performed. All 117 episodes of hospital-acquired AB bacteremia sorted into groups of pneumonia-related AB BSIs (n = 45) and nonpneumonia-related AB BSIs (n = 72) were eligible. Univariate/multivariate logistic regression analysis was used to explore the independent risk factors. The primary outcome was the antibiotic susceptibility in vitro of pneumonia-related AB BSIs group. The secondary outcome was the independent risk factor for the pneumonia-related AB BSIs group. Results Among 117 patients with AB BSIs, the pneumonia-related group had a greater risk of multidrug resistant A. baumannii (MDRAB) infection (84.44%) and carbapenem-resistant A. baumannii (CRAB) infection (80%). Polymyxin, minocycline and amikacin had relatively high susceptibility rates (> 80%) in the nonpneumonia-related group. However, in the pneumonia-related group, only polymyxin had a drug susceptibility rate of over 80%. Univariate analysis showed that survival time (day), CRAB, MDRAB, length of hospital stay prior to culture, length of ICU stay prior to culture, immunocompromised status, antibiotics used prior to culture (n > = 3 types), endotracheal tube, fiberoptic bronchoscopy, PITT, SOFA and invasive interventions (n > = 3 types) were associated with pneumonia-related AB bacteremia. The multivariate logistic regression analysis revealed that recent surgery (within 1 mo) [P = 0.043; 0.306 (0.098–0.962)] and invasive interventions (n > = 3 types) [P = 0.021; 0.072 (0.008–0.671)] were independent risk factors related to pneumonia-related AB bacteremia. Multivariate logistic regression analysis revealed that length of ICU stay prior to culture [P = 0.009; 0.959 (0.930–0.990)] and recent surgery (within 1 mo) [P = 0.004; 0.260 (0.105–0.646)] were independent risk factors for mortality in patients with pneumonia-related AB bacteremia. The Kaplan‒Meier curve and the timing test showed that patients with pneumonia-related AB bacteremia had shorter survival time compared to those with nonpneumonia-related AB bacteremia. Conclusions Our study found that A. baumannii had a high rate of antibiotic resistance in vitro in the pneumonia-related bacteremia group, and was only sensitive to polymyxin. Recent surgery was a significantly independent predictor in patients with pneumonia-related AB bacteremia.
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Introduction Carbapenemase-producing Enterobacterales (CPE) are an important public health threat, with costly operational and economic consequences for NHS Integrated Care Systems and NHS Trusts. UK Health Security Agency guidelines recommend that Trusts use locally developed risk assessments to accurately identify high-risk individuals for screening, and implement the most appropriate method of testing, but this presents many challenges. Methods A convenience sample of cross-specialty experts from across England met to discuss the barriers and practical solutions to implementing UK Health Security Agency framework into operational and clinical workflows. The group derived responses to six key questions that are frequently asked about screening for CPE. Key findings Four patient groups were identified for CPE screening: high-risk unplanned admissions, high-risk elective admissions, patients in high-risk units, and known positive contacts. Rapid molecular testing is a preferred screening method for some of these settings, offering faster turnaround times and more accurate results than culture-based testing. It is important to stimulate action now, as several lessons can be learnt from screening during the COVID-19 pandemic, as well as from CPE outbreaks. Conclusion Further decisive and instructive information is needed to establish CPE screening protocols based on local epidemiology and risk factors. Local management should continually evaluate local epidemiology, analysing data and undertaking frequent prevalence studies to understand risks, and prepare resources– such as upscaled screening– to prevent increasing prevalence, clusters or outbreaks. Rapid molecular-based methods will be a crucial part of these considerations, as they can reduce unnecessary isolation and opportunity costs.
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Background Overuse of antibiotics is a key driver of antimicrobial resistance (AMR) world-wide. Malawi continues to report rising cases of AMR among both in-patients and out-patients. We investigated antibiotic use and resistance patterns among patients with suspected first line antibiotic treatment failure at Rumphi District Hospital, Malawi. Methods We used a cross-sectional study design in which records of patients data on culture and antimicrobial sensitivity tests were extracted, alongside treatment history from 2019 to March, 2023, retrospectively. We also included findings for point prevalence survey (PPS) conducted within four hospital wards in June, 2022 by a well-trained multi-disciplinary team from within the hospital. The data was analyzed for antibiotic use, characterization of pathogens and their susceptibility patterns using Microsoft excel and STATA-14 software. Results A total of 85 patients’ data records were reviewed on antibiotics resistance pattern in which 54 (63.5%) were females. Patient antibiotic history captured indicated Metronidazole (23%), Gentamycin (20%) and Doxycycline (23%) as the most frequently used antibiotics among clients referred for microbiological investigations. Among locally available antibiotics with over 50% sensitivity were Chloramphenicol (61%), ciprofloxacin (55%), and ceftriaxone (54%). Penicillins were among antibiotics with highest resistance: ampicillin (100%), amoxyclav (90%), Piperacilin-tazobactam (63%). The majority of patients came from STI clinic and presented with genital discharges 44% (n = 39). Over 80% of the isolated N. gonorrhoeae exhibited a reduced susceptibility to gentamycin. Prevalence of Methicillin resistant staphylococcus Aureus (MRSA) was 46% and were mostly isolated from wound pus. Among 80 data records of the patients reviewed during PPS, Ceftriaxone (54.3%) and Metronidazole (23.3%) emerged as the most frequently used antibiotics in the wards which were prescribed empirically without a microbiological indication. Conclusion In this study setting, we observed high use of watch antibiotics along with problem of multi-drug resistant infections in patients experiencing clinical failure in a variety of clinical syndromes. The findings underline the need to revamp diagnostic microbiology to increase the uptake of antimicrobial susceptibility testing to guide specific prescriptions of broad-spectrum antibiotics in the watch list.
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Background Urinary tract infection (UTI) is a common cause of sepsis. Elderly patients with urosepsis in intensive care unit (ICU) have more severe conditions and higher mortality rates owing to factors such as advanced age, immunosenescence, and persistent host inflammatory responses. However, comprehensive studies on nomograms to predict the in-hospital mortality risk in elderly patients with urosepsis are lacking. This study aimed to construct a nomogram predictive model to accurately assess the prognosis of elderly patients with urosepsis and provide therapeutic recommendations. Methods Data of elderly patients with urosepsis were extracted from the Medical Information Mart for Intensive Care (MIMIC) IV 2.2 database. Patients were randomly divided into training and validation cohorts. A predictive nomogram model was constructed from the training set using logistic regression analysis, followed by internal validation and sensitivity analysis. Results This study included 1,251 patients. LASSO regression analysis revealed that the Glasgow Coma Scale (GCS) score, red cell distribution width (RDW), white blood count (WBC), and invasive ventilation were independent risk factors identified from a total of 43 variables studied. We then created and verified a nomogram. The area under the receiver operating characteristic curve (AUC), net reclassification improvement (NRI), integrated discrimination improvement (IDI), and decision curve analysis (DCA) of the nomogram were superior to those of the traditional SAPS-II, APACHE-II, and SOFA scoring systems. The Hosmer-Lemeshow test results and calibration curves suggested good nomogram calibration. The IDI and NRI values showed that our nomogram scoring tool performed better than the other scoring systems. The DCA curves showed good clinical applicability of the nomogram. Conclusions The nomogram constructed in this study is a convenient tool for accurately predicting in-hospital mortality in elderly patients with urosepsis in ICU. Improving the treatment strategies for factors related to the model could improve the in-hospital survival rates of these patients.
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Objectives The increasing prevalence of severe Mycoplasma pneumoniae pneumonia (SMPP) poses a significant threat to the health of children. This study aimed to characterise and assess the outcomes in children with SMPP. Methods We retrospectively analysed children hospitalised for M. pneumoniae pneumonia (MPP) between January and December 2022. Retrospectively, demographic, clinical, underlying diseases, laboratory and radiological findings, and treatment outcomes were collected and analysed. Disease severity was defined as severe or general according to the Guideline for diagnosis and treatment of community-acquired pneumonia in children (2019 version). Results Over a 12-month observation period, 417 children with MPP were enrolled, 50.6% (211/417) of whom had SMPP, with the peak incidence observed in winter. Of the 211 children with SMPP, 210 were treated and discharged with improvement, while one child with congenital heart disease died of cardioembolic stroke. A significantly higher proportion of patients with SMPP had underlying diseases, extrapulmonary complications (myocardial and digestive system involvement), and bacterial co-infection. A total of 25 (12%) children with SMPP received mechanical ventilation. The median duration of mechanical ventilation was 3 days. All children were treated with macrolide antibiotic. A significantly higher proportion of patients with SMPP received antibiotic other than macrolides, methylprednisolone sodium succinate, intravenous immunoglobulin and anticoagulation, compared with patients with general MPP (GMPP). Children with SMPP had significantly higher levels of white blood cells, neutrophil percentage, C-reactive protein, procalcitonin, interferon-γ, interleukin (IL)-2, IL-5, IL-6, IL-8, IL-10 and significantly lower percentages of lymphocytes, monocytes, and natural killer cells, compared with GMPP group. Conclusion Our findings suggest that severely ill children have more pronounced inflammatory reaction and extrapulmonary complications. For effective management of children with SMPP, hormonal, prophylactic, anticoagulant therapy, as well as the use of antibiotics other than macrolides for bacterial co-infections, could be incorporated into treatment regimens.
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Background Cytomegalovirus (CMV) colitis significantly complicates the course of inflammatory bowel disease (IBD), frequently leading to severe flare-ups and poor outcomes. The role of antiviral therapy in hospitalized IBD patients with CMV colitis is currently under debate. This retrospective analysis seeks to clarify the influence of antiviral treatment on these patients. Methods We retrospectively reviewed IBD patients diagnosed with CMV colitis via immunohistochemistry staining from colonic biopsies at a major tertiary center from January 2000 to May 2021. The study focused on patient demographics, clinical features, risk factors, prognostic indicators, and antiviral treatment outcomes. Results Among 118 inpatients, 42 had CMV colitis. Risk factors included hypoalbuminemia and antibiotic use. IBD patients with CMV colitis receiving
Læs mere Tjek på PubMedBMC Infectious Diseases, 27.04.2024
Tilføjet 27.04.2024
Abstract Streptococcus suis is one of the most common zoonotic pathogens, in humans and can cause meningitis, endocarditis, arthritis and sepsis. Human cases of Streptococcus suis infection have been reported worldwide, and most of those cases occurred in Asia. Hearing loss is the most common sequela of Streptococcus suis meningitis. Streptococcus suis infection complicated with acute cerebral infarction has rarely been reported. Therefore, to provide a reference for this disease, we reported a case of acute multiple brain infarctions associated with Streptococcus suis infection. In our report, a 69yearold male patient had Streptococcus suis meningitis and sepsis, which were associated with multiple acute cerebral infarctions in the pons and bilateral frontotemporal parietal occipital lobes. After treatment, the patient exhibited cognitive impairment, dyspraxia and irritability. There are limited case reports of cerebral infarction associated with Streptococcus suis infection, and further research is needed to determine the best treatment method.
Læs mere Tjek på PubMedVladislav Ilík, Erich M. Schwarz, Eva Nosková, Barbora Pafčo
Trends in Parasitology, 27.04.2024
Tilføjet 27.04.2024
Hookworms are parasites, closely related to the model nematode Caenorhabditis elegans, that are a major economic and health burden worldwide. Primarily three hookworm species (Necator americanus, Ancylostoma duodenale, and Ancylostoma ceylanicum) infect humans. Another 100 hookworm species from 19 genera infect primates, ruminants, and carnivores. Genetic data exist for only seven of these species. Genome sequences are available from only four of these species in two genera, leaving 96 others (particularly those parasitizing wildlife) without any genomic data. The most recent hookworm genomes were published 5 years ago, leaving the field in a dusk. However, assembling genomes from single hookworms may bring a new dawn. Here we summarize advances, challenges, and opportunities for studying these neglected but important parasitic nematodes.
Læs mere Tjek på PubMedSarah M. Short, Risa Pesapane
Trends in Parasitology, 27.04.2024
Tilføjet 27.04.2024
Blacklegged ticks (Ixodes scapularis) are responsible for transmission of the bacteria that cause Lyme disease – the most common tick-borne disease in temperate North America – as well as several other pathogens of medical and veterinary importance that are acquired during blood feeding. I. scapularis is a three-host tick with a wide host range, but its immature forms typically prefer small mammals or birds while adults prefer white-tailed deer. All three life stages bite humans and domestic animals.
Læs mere Tjek på PubMedXiaogang Wang, Jean C. Lee
Trends in Microbiology, 27.04.2024
Tilføjet 27.04.2024
Staphylococcus aureus is an important bacterial pathogen that causes a wide variety of human diseases in community and hospital settings. S. aureus employs a diverse array of virulence factors, both surface-associated and secreted, to promote colonization, infection, and immune evasion. Over the past decade, a growing body of research has shown that S. aureus generates extracellular membrane vesicles (MVs) that package a variety of bacterial components, many of which are virulence factors. In this review, we summarize recent advances in our understanding of S. aureus MVs and highlight their biogenesis, cargo, and potential role in the pathogenesis of staphylococcal infections. Lastly, we present some emerging questions in the field.
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