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The prevalence of adaptive immunity to COVID-19 and reinfection after recovery - a comprehensive systematic review and meta-analysis of 12 011 447 individuals
(
Qatar University Press
, 2021 , Poster)
Research purpose: The research aims to estimate the prevalence of detectable SARS-CoV-2 antibodies, T and B memory cells after recovery, to determine the prevalence of SARS-CoV-2 reinfection, and to investigate the protective ...
Association between pre-existing conditions and hospitalization, intensive care services and mortality from COVID-19 - a cross sectional analysis of an international global health data repository
(
Qatar University Press
, 2021 , Poster)
Objective: To investigate the association between pre-existing conditions and hospitalization, need for intensive care services (ICU) and mortality due to COVID-19. Methods: We used data on all cases recorded in the Global ...
The risk of severe COVID-19 and mortality from COVID-19 in people living with HIV compared to individuals without HIV - a systematic review and meta-analysis of 1 268 676 individuals.
(
Qatar University Press
, 2021 , Poster)
Research Purpose: Findings from existing studies have shown conflicting evidence concerning the risk of severe COVID-19 and death from COVID-19 in people living with HIV (PLHIV) compared to people without HIV. The aim of ...
Efficacy of chloroquine and hydroxychloroquine in treating COVID-19 infection: A meta-review of systematic reviews and an updated meta-analysis
(
Elsevier
, 2021 , Article)
To synthesize findings from systematic reviews and meta-analyses on the efficacy and safety of chloroquine (CQ) and hydroxychloroquine (HCQ) with or without Azithromycin for treating COVID-19, and to update the evidence ...
The prevalence of adaptive immunity to COVID-19 and reinfection after recovery - a comprehensive systematic review and meta-analysis.
(
Taylor & Francis
, 2022 , Article)
This study aims to estimate the prevalence and longevity of detectable SARS-CoV-2 antibodies and T and B memory cells after recovery. In addition, the prevalence of COVID-19 reinfection and the preventive efficacy of ...
Demographic and Clinical Characteristics of Early Travel-Associated COVID-19 Cases
(
Frontiers Media
, 2020 , Article)
© Copyright © 2020 Marei, Emara, Elsaied, Nasrallah, Chivese, Al-Romaihi, Althani, Al Thani, Farag and Yassine. Background: SARS-CoV-2 continues to claim hundreds of thousands of people's lives. It mostly affects the elderly ...
Duration of COVID-19 mRNA Vaccine Effectiveness against Severe Disease
(
MDPI
, 2022 , Article)
Waning immunity following administration of mRNA-based COVID-19 vaccines remains a concern for many health systems. We undertook a study to determine if recent reports of waning for severe disease could have been attributed ...
Association between pregnancy and severe COVID-19 symptoms in Qatar: A cross-sectional study.
(
PLOS Global Public Health
, 2023 , Article)
There is inconclusive evidence whether pregnancy exacerbates COVID-19 symptoms or not, and scarce data from the Middle East and North Africa region. The aim of this study was to investigate the association between pregnancy ...
No Association Between Ct Value and COVID-19 Severity and Mortality in Qatar.
(
Dove Press Ltd
, 2023 , Article)
The association between the cycle threshold (Ct) which reflects the SARS-CoV-2 viral load and the severity of COVID-19 is still not clear. We investigated the association between Ct values, symptoms and the risk of ICU ...
Association between Multimorbidity and COVID-19 Mortality in Qatar: A Cross-Sectional Study
(
PagePress
, 2023 , Article)
This study assessed the association between multimorbidity and mortality from COVID-19 in the Middle East and North Africa region, where such data are scarce. We conducted a cross-sectional study using data of all cases ...