Most downloaded biology preprints, all time
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313 results found. For more information, click each entry to expand.
5,777 downloads medRxiv hiv aids
Background: The effect of HIV co-infection on COVID-19 outcomes in sub-Saharan Africa is unknown. Methods: We conducted a population cohort study using linked data from adults attending public sector health facilities in the Western Cape, South Africa. We used Cox-proportional hazards models adjusted for age, sex, location and comorbidities to examine the association between HIV and COVID-19 death among (i) public sector 'active patients' (at least 1 health visit in the 3 years before March 2020), (ii) laboratory-diagnosed COVID-19 cases and (iii) hospitalized COVID-19 cases. COVID-19 was diagnosed with SARS-CoV-2 PCR tests. We calculated the standardized mortality ratio (SMR) for COVID-19 comparing HIV positive vs. negative adults using modelled population estimates. Results: Among 3,460,932 public sector patients (16% HIV positive), 22,308 were diagnosed with COVID-19, of whom 625 died. In adjusted analysis, HIV increased risk of COVID-19 mortality (adjusted hazard ratio [aHR]:2.14; 95% confidence interval [CI]:1.70; 2.70), with similar risks across strata of viral load and immunosuppression. increased HIV-associated risk of COVID-19 death remained when restricting to COVID-19 cases (aHR:1.70; 95%CI:132; 2.18) or hospitalized cases (aHR:1.45; 95%CI:1.14; 1.84). Current and previous tuberculosis also increased COVID-19 mortality risk (aHR [95%CI]:2.70 [1.81; 4.04] and 1.51 [1.18; 1.93] respectively). The SMR for COVID-19 death associated with HIV was 2.39 (95% CI:1.96; 2.86); population attributable fraction 8.5% (95%CI:6.1; 11.1). Conclusion: HIV was associated with a doubling of COVID-19 mortality risk. While our findings may over-estimate the HIV-associated risk COVID-19 death due to residual confounding, people with HIV should be considered a high-risk group for COVID-19 management.
3,477 downloads medRxiv hiv aids
We applied a simulation model of HIV to analyze the effects of 3 and 6-month disruptions in health services as a result of COVID-19. We found that disruptions to primary prevention programs (male circumcision, behavior change programs, condom distribution) would have small but transitory effects on new infections that might be more than offset by reductions in commercial and multi-partner sex due to lock downs. However, if COVID-19 leads to disruptions in ART services the impacts on mortality could be severe, doubling or tripling the estimated number of HIV deaths in 2020.
3,019 downloads medRxiv hiv aids
BackgroundThe global COVID-19 pandemic has the potential to indirectly impact the transmission dynamics and prevention of HIV and other sexually transmitted infections (STI). Studies have already documented reductions in sexual activity ("sexual distancing") and interruptions in HIV/STI services, but it is unknown what combined impact these two forces will have on HIV/STI epidemic trajectories. MethodsWe adapted a network-based model of co-circulating HIV, gonorrhea, and chlamydia for a population of approximately 103,000 men who have sex with men (MSM) in the Atlanta area. Model scenarios varied the timing, overlap, and relative extent of COVID-related sexual distancing in casual and one-time partnership networks and service interruption within four service categories (HIV screening, HIV PrEP, HIV ART, and STI treatment). ResultsA 50% relative decrease in sexual partnerships and interruption of all clinical services, both lasting 18 months, would generally offset each other for HIV (total 5-year population impact for Atlanta MSM: -227 cases), but have net protective effect for STIs (-23,800 cases). Greater relative reductions and longer durations of service interruption would increase HIV and STI incidence, while greater relative reductions and longer durations of sexual distancing would decrease incidence of both. If distancing lasted only 3 months but service interruption lasted 18 months, the total 5-year population impact would be an additional 890 HIV cases and 57,500 STI cases. ConclusionsThe counterbalancing impact of sexual distancing and clinical service interruption depends on the infection and the extent and durability of these COVID-related changes. If sexual behavior rebounds while service interruption persists, we project an excess of hundreds of HIV cases and thousands of STI cases just among Atlanta MSM over the next 5 years. Immediate action to limit the impact of service interruptions is needed to address the indirect effects of the global COVID pandemic on the HIV/STI epidemic.
2,436 downloads medRxiv hiv aids
Farina Karim, Inbal Gazy, Sandile Cele, Yenzekile Zungu, Robert Krause, Mallory Bernstein, Yashica Ganga, Hylton Rodel, Ntombifuthi Mthabela, Matilda Mazibuko, Khadija Khan, Daniel Muema, Dirhona Ramjit, Gila Lustig, Thumbi Ndung'u, Willem Hanekom, Bernadett I Gosnell, COMMIT-KZN Team, Emily Wong, Tulio de Oliveira, Yunus Moosa, Alasdair Leslie, Henrik Kløverpris, Alex Sigal
There are conflicting reports on the effects of HIV on COVID-19. Here we analyzed disease severity and immune cell changes during and after SARS-CoV-2 infection in 236 participants from South Africa, of which 39% were people living with HIV (PLWH), during the first and second (beta dominated) infection waves. The second wave had more PLWH requiring supplemental oxygen relative to HIV negative participants. Higher disease severity was associated with low CD4 T cell counts and higher neutrophil to lymphocyte ratios (NLR). Yet, CD4 counts recovered and NLR stabilized after SARS-CoV-2 clearance in wave 2 infected PLWH, arguing for an interaction between SARS-CoV-2 and HIV infection leading to low CD4 and high NLR. The first infection wave, where severity in HIV negative and PLWH was similar, still showed some HIV modulation of SARS-CoV-2 immune responses. Therefore, HIV infection can synergize with the SARS-CoV-2 variant to change COVID-19 outcomes.
2,309 downloads medRxiv hiv aids
Objective: To assess whether people living with HIV (PLWH) are at increased risk of COVID-19 mortality or adverse outcomes, and whether antiretroviral therapy (ART) influences this risk. Design: Rapid review with meta-analysis and narrative synthesis. Methods: We searched databases including Embase, Medline, medRxiv, and Google Scholar up to 26th August 2020 for studies describing COVID-19 outcomes in PLWH and conducted a meta-analysis of higher quality studies. Results: We identified 1,908 studies and included 19 in the review. In a meta-analysis of five studies, PLWH had a higher risk of COVID-19 mortality (hazard ratio (HR) 1.93, 95% Confidence Interval (CI): 1.59-2.34) compared to people without HIV. Risk of death remained elevated for PLWH in a subgroup analysis of hospitalised cohorts (HR 1.54, 95% CI: 1.05-2.24) and studies of PLWH across all settings (HR 2.08, 95%CI: 1.69-2.56). Eight other studies assessed the association between HIV and COVID-19 outcomes, but provided inconclusive, lower-quality evidence due to potential confounding and selection bias. There were insufficient data on the effect of CD4+ T cell count and HIV viral load on COVID-19 outcomes. Eleven studies reported COVID-19 outcomes by ART-regimen. In the two largest studies, tenofovir-disoproxil-fumarate (TDF)-based regimens were associated with a lower risk of adverse COVID-19 outcomes, although these analyses are susceptible to confounding by comorbidities. Conclusion: Evidence is emerging that suggests a moderately increased risk of COVID-19 mortality amongst PLWH. Further investigation into the relationship between COVID-19 outcomes and CD4+ T cell count, HIV viral load, ART and the use of TDF is warranted.
2,229 downloads medRxiv hiv aids
Yang Luo, Masahiro Kanai, Wanson Choi, Xinyi Li, Kenichi Yamamoto, Kotaro Ogawa, Maria Gutierrez-Arcelus, Peter K Gregersen, Philip E Stuart, James T Elder, Jacques Fellay, Mary Carrington, David W. Haas, Xiuqing Guo, Nicholette D Palmer, Yii-Der Ida Chen, Jerome I. Rotter, Kent D Taylor, Steve Rich, Adolfo Correa, James G Wilson, Sekar Kathiresan, Michael Cho, Andres Metspalu, Tonu Esko, Yukinori Okada, Buhm Han, NHLBI Trans-Omics for Precision Medicine (TOPMed) Consortium, Paul J Mclaren, Soumya Raychaudhuri
Defining causal variation by fine-mapping can be more effective in multi-ethnic genetic studies, particularly in regions such as the MHC with highly population-specific structure. To enable such studies, we constructed a large (N=21,546) high resolution HLA reference panel spanning five global populations based on whole-genome sequencing data. Expectedly, we observed unique long-range HLA haplotypes within each population group. Despite this, we demonstrated consistently accurate imputation at G-group resolution (94.2%, 93.7%, 97.8% and 93.7% in Admixed African (AA), East Asian (EAS), European (EUR) and Latino (LAT)). We jointly analyzed genome-wide association studies (GWAS) of HIV-1 viral load from EUR, AA and LAT populations. Our analysis pinpointed the MHC association to three amino acid positions (97, 67 and 156) marking three consecutive pockets (C, B and D) within the HLA-B peptide binding groove, explaining 12.9% of trait variance, and obviating effects of previously reported associations from population-specific HIV studies.
2,135 downloads medRxiv hiv aids
Georg Haerter, Christoph D. Spinner, Julia Roider, Markus Bickel, Ivanka Krznaric, Stephan Grunwald, Farhad Schabaz, Daniel Gillor, Nils Postel, Matthias C Mueller, Markus Mueller, Katja Roemer, Knud Schewe, Christian Hoffmann
Data on people living with human immunodeficiency virus (PLWH) in the current SARS-CoV-2 pandemic is still scarce. This case series of 33 PLWH patients with COVID-19 reveals symptoms and outcome in this special population. Three out of 32 patients with documented outcome died (9%). However, 91% of the patients recovered and 76% have been classified as mild cases, indicating that there is no excess morbidity and mortality among PLWH with symptomatic COVID-19. All patients were on antiretroviral treatment, of them 22 on tenofovir-containing regimen, and 4 on the protease inhibitor darunavir.
2,032 downloads medRxiv hiv aids
Background: SARS-CoV-2 infection continues to cause significant morbidity and mortality worldwide. Preliminary data on SARS-CoV-2 infection suggests that some immunocompromised hosts experience worse outcomes. We performed a retrospective matched cohort study to characterize outcomes in HIV-positive patients with SARS-CoV-2 infection. Methods: Leveraging data collected from electronic medical records for all patients hospitalized at NYU Langone Health with COVID-19 between March 2, 2020 and April 23, 2020, we matched 21 HIV-positive patients to 42 non-HIV patients using a greedy nearest neighbor algorithm. Admission characteristics, laboratory results, and hospital outcomes were recorded and compared between the two groups. Results: While there was a trend toward increased rates of ICU admission, mechanical ventilation, and mortality in HIV-positive patients, these differences were not statistically significant. Rates for these outcomes in our cohort are similar to those previously published for all patients hospitalized with COVID-19. HIV-positive patients had significantly higher admission and peak CRP values. Other inflammatory markers did not differ significantly between groups, though HIV-positive patients tended to have higher peak values during their clinical course. Three HIV-positive patients had superimposed bacterial pneumonia with positive sputum cultures, and all three patients expired during hospitalization. There was no difference in frequency of thrombotic events or myocardial infarction between these groups. Conclusion: This study provides evidence that HIV coinfection does not significantly impact presentation, hospital course, or outcomes of patients infected with SARS-CoV-2, when compared to matched non-HIV patients. A larger study is required to determine if the trends we observed apply to all HIV-positive patients.
1,777 downloads medRxiv hiv aids
Abstract The world currently faces two ongoing devastating pandemics. These are the new severe acute respiratory syndrome coronavirus 2/coronavirus disease 2019 (SARS-CoV-2/COVID-19) and the prior human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) pandemics. The literature regarding the confluence of these global plagues expands at pace. A systematic search of the literature considering COVID-19 and HIV co-infection was performed. After five months, from the beginning of the COVID-19 pandemic, there were at least thirty-five studies reported from thirteen countries. These ranged from individual case reports and series to cohort studies. Based on studies that could be extrapolated to the general population, co-infected individuals with suppressed HIV viral loads did not have disproportionate COVID-19 sickness and death. At least four patients, newly diagnosed with HIV recovered from COVID-19. Current evidence suggests that co-infected patients should be treated like the general population. This ongoing living systematic evidence map of contemporary primary SARS-CoV-2 and HIV co-infection research provides a platform for researchers, policy makers, clinicians and others to more quickly discover and build relevant insights.
1,592 downloads medRxiv hiv aids
Alvaro Francisco Lopes de Sousa, Layze Braz Oliveira, Guilherme Schneider, Artur Acelino Francisco Luz Queiroz, Herica Emilia Felix de Carvalho, Telma Maria Evangelista de Araujo, Emerson Lucas Silva Camargo, Sandra Brignol, Isabel Amelia Costa Mendes, Willi McFarland, Inês Fronteira
Background: The social isolation to which Brazilians and Portuguese are subjected has been affecting their mental and sexual health, decreasing social support and increasing sexual risk behavior and exposure to the SARSCoV-2 virus. In this study we aim to investigate the practice of casual sex and the factors that are associated with this event in the context of the COVID-19 pandemic. Methods: An online survey carried out throughout Brazil and Portugal in April 2020, during the period of social isolation, with a sample of 2361 MSM. The collection took place in meeting apps and Facebook. Findings: There was a high frequency of casual sex (53%) and the use of strategies, without technical or scientific basis, to prevent infection by SARSCoV-2, such as the use of Truvada (12.7%). Among the factors that increased the chance of engaging in casual sex, we highlight: having sex simultaneously with two or more people (aOR = 2.1; 95%CI 1.4 - 3.4); Having sex with a regular and casual partner (aOR = 1.6; 95% CI 0.9-2.8), and only with casual (aOR = 2.5; 95%CI 1.8 - 3.5), using Facebook (aOR = 4.6; 95%CI 3.0-7.2), and cruising, swing houses, saunas or cruising points to get partners (aOR = 5.4; 95%CI 3.2 -8.9), being HIV positive (ORa = 11.7; 95%CI 4.7-29.2), or of unknown serological status (aOR = 1.4; 95%CI 0.7-2.3). In both countries, the longer the period of social isolation, the greater the chance of engaging in casual sex. Interpretation: Despite the great differences between the two countries, in both of them we registered a significant frequency of practicing casual sex, accompanied by dubious strategies to minimize the risk of acquiring SARSCov-2. This indicates that MSM participating in the research, to some degree, continue to be exposed to risky sexual practices for HIV infection and other STIs, but also for COVID-19. Funding: Conselho Nacional de Pesquisa-CNPq, Brazil.
1,492 downloads medRxiv hiv aids
Anna Maria Geretti, Alexander Stockdale, Sophie Kelly, Muge Cevik, Simon Collins, Laura Waters, Giovanni Villa, Annemarie B Docherty, Ewen M Harrison, Lance Turtle, Peter JM Openshaw, John Kenneth Baillie, Caroline Sabin, Calum Semple
Background. There is conflicting evidence about how HIV infection influences COVID-19. We compared the presentation characteristics and outcomes of people with and without HIV hospitalised with COVID-19 at 207 centres across the United Kingdom. Methods. We analysed data from people with laboratory confirmed or highly likely COVID-19 enrolled into the ISARIC CCP-UK study. The primary endpoint was day-28 mortality after presentation. We used Kaplan-Meier methods and Cox regression to describe the association with HIV status after adjustment for sex, ethnicity, age, indeterminate/probable hospital acquisition of COVID-19 (definite hospital acquisition excluded), presentation date, and presence/absence of ten comorbidities. We additionally adjusted for disease severity at presentation as defined by hypoxia/oxygen therapy. Findings. Among 47,539 patients, 115 (0.24%) had confirmed HIV-positive status and 103/115 (89.6%) had a record of antiretroviral therapy. At presentation, relative to the HIV-negative group, HIV-positive people were younger (median 55 versus 74 years; p<0.001), had a higher prevalence of obesity and moderate/severe liver disease, higher lymphocyte counts and C-reactive protein, and more systemic symptoms. The cumulative incidence of day-28 mortality was 25.2% in the HIV-positive group versus 32.1% in the HIV-negative group (p=0.12); however, stratification for age revealed a higher mortality among HIV-positive people aged below 60 years. The effect of HIV-positive status was confirmed in adjusted analyses (adjusted hazard ratio [HR] 1.49, 95% confidence interval [CI] 0.99-2.25; p=0.06). Following additional adjustment for disease severity at presentation, mortality was higher in HIV-positive people (adjusted HR 1.63; 95% CI 1.07-2.48; p=0.02). In the HIV-positive group, mortality was more common among those who were slightly older and among people with obesity and diabetes with complications. Interpretation. HIV-positive status may be associated with an increased risk of day-28 mortality following a COVID-19 related hospitalisation.
1,464 downloads medRxiv hiv aids
Background: COVID-19 is a new global pandemic and people with HIV may be particularly vulnerable. Gender identity is not reported, therefore data are absent on the impact of COVID-19 on transgender people, including transgender people with HIV. Baseline data from the American Cohort to Study HIV Acquisition Among Transgender Women in High Risk Areas (LITE) Study provide an opportunity to examine pre-COVID vulnerability among transgender women. Setting: Atlanta, Baltimore, Boston, Miami, New York City, Washington, DC Methods: Baseline data from LITE were analysed for demographic, psychosocial, and material factors that may affect risk for COVID-related harms. Results: The 1020 participants had high rates of poverty, unemployment, food insecurity, homelessness, and sex work. Transgender women with HIV (n=273) were older, more likely to be Black, had lower educational attainment, and were more likely to experience material hardship. Mental and behavioural health symptoms were common and did not differ by HIV status. Barriers to healthcare included being mistreated mistreatment, uncomfortable providers, and past negative experiences; as well as material hardships, such as cost and transportation. However, most reported access to material and social support - demonstrating resilience. Conclusions: Transgender women with HIV may be particularly vulnerable to pandemic harms. Mitigating this harm would have positive effects for everyone, given the highly infectious nature of this coronavirus. Collecting gender identity in COVID-19 data is crucial to inform an effective public health response. Transgender-led organizations' response to this crisis serve as an important model for effective community-led interventions.
1,364 downloads medRxiv hiv aids
Objectives: To determine the prevalence, clinical characteristics and outcomes of HIV and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) co-infection. Methods: We searched Medline, Embase, Cochrane and Web of Science databases and grey literature for studies reporting epidemiological and clinical data of patients with HIV and SARS-CoV-2 co-infection. Eligible studies were all observational or interventional studies and commentaries in English language that reported patient data on HIV/SARS-CoV-2 co-infection. We used random effect meta-analysis to determine the pooled prevalence and mortality. Results: Of the 17 eligible studies, there were 3 retrospective cohorts, 1 survey, 5 case series, 7 case reports and 1 commentary that reported on a total of 146 HIV infected individuals. The pooled prevalence of HIV among individuals with SARS-CoV-2 infection was 1.0% (95% CI: 0.0 - 3.0, I2 = 79.3%, p=0.01), whereas the prevalence of SARS-CoV-2 among HIV patients was 0.68% (95% CI: 0.34 - 1.34). There were 110 (83.8%) HIV/ SARS-CoV-2 co-infected males, and the age (range) of the co-infected was 30 - 60 years. A total of 129 (97.0%) were anti-retroviral therapy experienced, and 113 (85.6%) had a suppressed HIV viral load. The CD4 count (range) was 298 - 670 cells/mm3 (n = 107). The commonest symptoms were fever (73.5%, n=75) and cough (57.8%, n = 59). Sixty-two (65.3%) patients had at least one other comorbid condition, of which hypertension (26.4%, n = 38) was the commonest. Chest radiological imaging abnormalities were found in 46 (54.1%) cases. Twenty-eight cases (56.0%) were reported as mild. Recovery occurred in 120 (88.9%) cases, and the pooled mortality was 9% (95% CI: 3.0 - 15.0, I2 = 25.6%, p =0.24). Conclusion: The prevalence of HIV/SARS-CoV-2 co-infection was low. The clinical characteristics and outcomes of HIV/SARS-CoV-2 co-infection are comparable to those reported among HIV negative SARS-CoV-2 cases.
1,314 downloads medRxiv hiv aids
Objective To conduct a systematic review and meta-analysis of the prevalence of HIV in patients hospitalized for COVID-19 and delineating clinical outcomes including mortality. Design/Methods MEDLINE, SCOPUS, OVID, and Cochrane Library databases and medrxiv.org were searched from January 1st, 2020, to June 15th, 2020. Data were extracted from studies reporting the prevalence of HIV among hospitalized COVID-19 patients and their clinical outcomes. Analyses were performed using random-effects models on log-transformed proportions and risk ratio estimates, and heterogeneity was quantified. Results A total of 144,795 hospitalized COVID-19 patients were identified from 14 studies in North America, Europe, and Asia. Median age was 55 years, and 66% were male. The pooled prevalence of HIV in COVID-19 patients was 1.22% [95% confidence interval (CI): 0.61%-2.43%)] translating to a 2-fold increase compared to the respective local-level pooled HIV prevalence in the general population of 0.65% (95% CI: 0.48%-0.89%). When stratified by country, the pooled HIV prevalence among COVID-19 patients in United States (1.43%, 95% CI: 0.98%-2.07%) was significantly higher compared to Spain (0.26%, 95% CI: 0.23%-0.29%) but was not different from China (0.99%, 95% CI: 0.25%-3.85%). The pooled mortality rate in HIV-positive patients hospitalized for COVID-19 was 14.1% (95% CI: 5.78%-30.50%) and was substantially higher in the United States compared to other countries.
1,303 downloads medRxiv hiv aids
Background. Transmission models provide complementary evidence to clinical trials about the potential population-level incidence reduction attributable to ART (ART prevention impact). Different modelling assumptions about risk heterogeneity may influence projected ART prevention impacts. We sought to review representations of risk heterogeneity in compartmental HIV transmission models applied to project ART prevention impacts in Sub-Saharan Africa. Methods. We systematically reviewed studies published before January 2020 that used non-linear compartmental models of sexual HIV transmission to simulate ART prevention impacts in Sub-Saharan Africa. We summarized data on model structure/assumptions (factors) related to risk and intervention heterogeneity, and explored multivariate ecological associations of ART prevention impacts with modelled factors. Results. Of 1384 search hits, 94 studies were included. 64 studies considered sexual activity stratification and 39 modelled at least one key population. 21 studies modelled faster/slower ART cascade transitions (HIV diagnosis, ART initiation, or cessation) by risk group, including 8 with faster and 4 with slower cascade transitions among key populations versus the wider population. In ecological analysis of 125 scenarios from 40 studies (subset without combination intervention), scenarios with risk heterogeneity that included turnover of higher risk groups were associated with smaller ART prevention benefits. Modelled differences in ART cascade across risk groups also influenced the projected ART benefits, including: ART prioritized to key populations was associated with larger ART prevention benefits. Of note, zero of these 125 scenarios considered lower ART coverage among key populations. Conclusion. Among compartmental transmission models applied to project ART prevention impacts in Sub-Saharan Africa, representations of risk heterogeneity and projected impacts varied considerably. Inclusion/exclusion of risk heterogeneity with turnover, and intervention heterogeneity across risk groups could influence the projected imp%acts of ART scale-up. These findings highlight a need to capture risk heterogeneity with turnover and cascade heterogeneity when projecting ART prevention impacts.
1,258 downloads medRxiv hiv aids
James M Tesoriero, Carol-Ann E. Swain, Jennifer L. Pierce, Lucila Zamboni, Meng Wu, David R Holtgrave, Charles J. Gonzalez, Tomoko Udo, Johanne E. Morne, Rachel Hart-Malloy, Deepa T. Rajulu, Shu-Yin John Leung, Eli S Rosenberg
BackgroundNew York State (NYS) has been an epicenter for both COVID-19 and HIV/AIDS epidemics. Persons Living with diagnosed HIV (PLWDH) may be more prone to COVID-19 infection and severe outcomes, yet few population-based studies have assessed the extent to which PLWDH are diagnosed, hospitalized, and have died with COVID-19, relative to non-PLWDH. MethodsNYS HIV surveillance, COVID-19 laboratory confirmed diagnoses, and hospitalization databases were matched. COVID-19 diagnoses, hospitalization, and in-hospital death rates comparing PLWDH to non-PLWDH were computed, with unadjusted rate ratios (RR) and indirect standardized RR (sRR), adjusting for sex, age, and region. Adjusted RR (aRR) for outcomes among PLWDH were assessed by age/CD4-defined HIV disease stage, and viral load suppression, using Poisson regression models. ResultsFrom March 1-June 7, 2020, PLWDH were more frequently diagnosed with COVID-19 than non-PLWDH in unadjusted (RR [95% confidence interval (CI)]: 1.43[1.38-1.48), 2,988 PLWDH], but not in adjusted comparisons (sRR [95% CI]: 0.94[0.91-0.97]). Per-population COVID-19 hospitalization was higher among PLWDH (RR [95% CI]: 2.61[2.45-2.79], sRR [95% CI]: 1.38[1.29-1.47], 896 PLWDH), as was in-hospital death (RR [95% CI]: 2.55[2.22-2.93], sRR [95%CI]: 1.23 [1.07-1.40], 207 PLWDH), albeit not among those hospitalized (sRR [95% CI]: 0.96[0.83-1.09]). Among PLWDH, hospitalization risk increased with disease progression from HIV Stage 1 to Stage 2 (aRR [95% CI]:1.27[1.09-1.47]) and Stage 3 (aRR [95% CI]: 1.54[1.24-1.91]), and for those virally unsuppressed (aRR [95% CI]: 1.54[1.24-1.91]). ConclusionPLWDH experienced poorer COVID-related outcomes relative to non-PLWDH, with 1-in-522 PLWDH dying with COVID-19, seemingly driven by higher rates of severe disease requiring hospitalization.
1,257 downloads medRxiv hiv aids
BackgroundMalnutrition especially under nutrition is the main problem that is seen over people living with HIV/AIDS and can occur at any age. Multiple factors contributed to malnutrition of HIV/AIDS patients and it need immediate identification and prompt action. The objective of this study was to assess the nutritional status of patients and identify factors associated with malnutrition among HIV/AIDS patients on follow-up care in Jimma medical center, Southwest Ethiopia. MethodsA cross-sectional study design was conducted from March-April, 2016. Data was collected retrospectively from clinical records of HIV/AIDS patients enrolled for follow up care in ART clinic from June 2010 to January 2016. Binary and multiple variable logistic regression was done to identify independent predictor of malnutrition. ResultsData of 971 patients were included in the study. The prevalence of under nutrition (BMI<18.5) was (36.8%) (95% CI: 33.8%-39.8%) and out of which severe malnutrition accounts 9.7%. Overweight and obese was 8.6%. Malnutrition was more likely among widowed patients (AOR=1.7, 95% CI, 1.034-2.798), patients in the WHO clinical AIDS staging of three (AOR=2.3, 95% CI, 1.392-3.693) and four (AOR=3.2, 95% CI, 1.667-5.943), patients with CD4 cell count of <200 cells/mm3 (AOR=2.0, 95% CI, 1.463-2.837) and patients with a functional status of bedridden (AOR=4.677, 95% CI, 1.761-12.419) and ambulatory (AOR=2.763, 95% CI, 1.833-4.165). ConclusionBoth under nutrition and overweight are prevalent among HIV/AIDS patients in Jimma Medical Center, Ethiopia. Malnutrition was significantly associated with clinical outcome of patients. Hence, nutritional assessment, care and support should be strengthened. Critical identification of malnourished patients and prompt interventions should be undertaken.
1,224 downloads medRxiv hiv aids
Malnutrition and infectious disease often coexist in socially inequitable contexts. Malnutrition in the perinatal period adversely affects offspring development and lifelong non-communicable disease risk. Less is known about the effects of infectious disease exposure during critical windows of development and health, and links between in utero HIV-exposure in the absence of neonatal infection, perinatal nutritional environments, and infant development are poorly defined. In a pilot feasibility study at Kalafong Hospital, Pretoria, South Africa, we aimed to better understand relationships between maternal HIV infection and the early nutritional environment of in utero HIV exposed uninfected (HEU) infants. We also undertook exploratory analyses to investigate relationships between food insecurity and infant development. Mother-infant dyads were recruited after delivery and followed until 12 weeks postpartum. Household food insecurity, nutrient intakes and dietary diversity scores did not differ between mothers living with or without HIV. Maternal reports of food insecurity were associated with lower maternal nutrient intakes 12 weeks postpartum, and in infants, higher brain-to-body weight ratio at birth and 12 weeks of age, and attainment of fewer large movement and play activities milestones at 12 weeks of age, irrespective of maternal HIV status. Reports of worry about food runout were associated with increased risk of stunting for HEU, but not unexposed, uninfected infants. Our findings suggest that food insecurity, in a vulnerable population, adversely affects maternal nutritional status and infant development. In utero exposure to HIV may further perpetuate these effects, which has implications for early child development and lifelong human capital.
1,183 downloads medRxiv hiv aids
Zabrina L. Brumme, Francis Mwimanzi, Hope R. Lapointe, Peter Cheung, Yurou Sang, Maggie C. Duncan, Fatima Yaseen, Olga Agafitei, Siobhan Ennis, Kurtis Ng, Simran Basra, Li Yi Lim, Rebecca Kalikawe, Sarah Speckmaier, Nadia Moran-Garcia, Landon Young, Hesham Ali, Bruce Ganase, Gisele Umviligihozo, F. Harrison Omondi, Kieran Atkinson, Hanwei Sudderuddin, Junine Toy, Paul Sereda, Laura Burns, Cecilia T. Costiniuk, Curtis Cooper, Aslam Anis, Victor Leung, Daniel Holmes, Mari L. DeMarco, Janet Simons, Malcolm Hedgcock, Marc Gabriel Romney, Rolando Barrios, Silvia Guillemi, Chanson J. Brumme, Ralph Pantophlet, Julio S.G. Montaner, Masahiro Niikura, Marianne Harris, Mark Hull, Mark A. Brockman
BackgroundOur understanding of COVID-19 vaccine immune responses in people living with HIV (PLWH) remains incomplete. MethodsWe measured circulating antibodies against the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein and ACE2 displacement activities after one and two COVID-19 vaccine doses in 100 adult PLWH and 152 controls. ResultsAll PLWH were receiving suppressive antiretroviral therapy, with median CD4+ T-cell counts of 710 (IQR 525-935) cells/mm3. Median nadir CD4+ T-cell counts were 280 (IQR 120- 490) cells/mm3, and ranged as low as <10 cells/mm3. After adjustment for sociodemographic, health and vaccine-related variables, HIV infection was associated with 0.2 log10 lower anti-RBD antibody concentrations (p=0.03) and [~]7% lower ACE2 displacement activity (p=0.037) after one vaccine dose. Following two vaccine doses however, the association between HIV and weaker responses no longer remained. Rather, older age, a higher burden of chronic health conditions, and having received two ChAdOx1 doses (as opposed to a heterologous or dual mRNA vaccine regimen) were the most significant correlates of weaker humoral responses. No significant association was observed between the most recent or nadir CD4+ T-cell counts and responses to COVID-19 vaccination in PLWH following two vaccine doses. ConclusionsThese results suggest that PLWH whose viral loads are well-controlled on antiretroviral therapy and whose CD4+ T-cell counts are in a healthy range will generally not require a third COVID-19 vaccine dose as part of their initial immunization series, though other factors such as older age, co-morbidities, type of initial vaccine regimen and durability of vaccine responses will influence when this group may benefit from additional doses. Further studies of PLWH who are not receiving antiretroviral treatment and/or who have low CD4+ T-cell counts are needed.
1,167 downloads medRxiv hiv aids
This systematic review summarizes the evidence on the earliest patients with COVID-19-HIV co-infection. We searched PubMed, Scopus, Web of Science, Embase, preprint databases, and Google Scholar from December 01, 2019 to June 1, 2020. From an initial 547 publications and 75 reports, 25 studies provided specific information on COVID-19 patients living with HIV. Studies described 252 patients, 80.9% were male, mean age was 52.7 years, and 98% were on ART. Co-morbidities in addition to HIV and COVID-19 (multimorbidity) included hypertension (39.3%), obesity or hyperlipidemia (19.3%), chronic obstructive pulmonary disease (18.0%), and diabetes (17.2%). Two-thirds (66.5%) had mild to moderate symptoms, the most common being fever (74.0%) and cough (58.3%). Among patients who died, the majority (90.5%) were over 50 years old, male (85.7%), and had multimorbidity (64.3%). Our findings highlight the importance of identifying co-infections, addressing co-morbidities, and ensuring a secure supply of ART for PLHIV during the COVID-19 pandemic.
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- 18 Dec 2019: We're pleased to announce PanLingua, a new tool that enables you to search for machine-translated bioRxiv preprints using more than 100 different languages.
- 21 May 2019: PLOS Biology has published a community page about Rxivist.org and its design.
- 10 May 2019: The paper analyzing the Rxivist dataset has been published at eLife.
- 1 Mar 2019: We now have summary statistics about bioRxiv downloads and submissions.
- 8 Feb 2019: Data from Altmetric is now available on the Rxivist details page for every preprint. Look for the "donut" under the download metrics.
- 30 Jan 2019: preLights has featured the Rxivist preprint and written about our findings.
- 22 Jan 2019: Nature just published an article about Rxivist and our data.
- 13 Jan 2019: The Rxivist preprint is live!