COVID-19 Research: Recent submissions

Now showing items 621-640 of 835

    • Association of Prior SARS-CoV-2 Infection With Risk of Breakthrough Infection Following mRNA Vaccination in Qatar. 

      Abu-Raddad, Laith J; Chemaitelly, Hiam; Ayoub, Houssein H; Yassine, Hadi M; Benslimane, Fatiha M; ... more authors ( American Medical Association , 2021 , Article)
      The effect of prior SARS-CoV-2 infection on vaccine protection remains poorly understood. To assess protection from SARS-CoV-2 breakthrough infection after mRNA vaccination among persons with vs without prior SARS-CoV-2 ...

    • Real-Time SARS-CoV-2 Genotyping by High-Throughput Multiplex PCR Reveals the Epidemiology of the Variants of Concern in Qatar 

      R. Hasan, Mohammad; K.R. Kalikiri, Mahesh; Mirza, Faheem; Sundararaju, Sathyavathi; Sharma, Anju; ... more authors ( Elsevier , 2021 , Article)
      Complementing whole genome sequencing strategies with high-throughput multiplex RT-qPCR genotyping allows for more comprehensive and real-time tracking of SARS-CoV-2 variants of concern. During the second and third waves ...

    • ABO blood group association and COVID-19. COVID-19 susceptibility and severity: a review 

      Shibeeb, Sapha; Khan, Aisha ( Elsevier , 2021 , Article)
      Introduction The SARS-CoV-2 pandemic has been affecting the health and economic, as well as social, life of the entire globe since the end of 2019. The virus causes COVID-19, with a wide range of symptoms among the infected ...

    • External Validation and Recalibration of the CURB-65 and PSI for Predicting 30-Day Mortality and Critical Care Intervention in Multiethnic Patients with COVID-19 

      Elmoheen, Amr; Abdelhafez, Ibrahim; Salem, Waleed; Bahgat, Mohamed; Elkandow, Ali; ... more authors ( Elsevier , 2021 , Article)
      Objectives: To validate and recalibrate the CURB-65 and pneumonia severity index (PSI) in predicting 30-day mortality and critical care intervention (CCI) in a multiethnic population with COVID-19, along with evaluating ...

    • COVID-19 Vaccine Platforms: Challenges and Safety Contemplations 

      Al-Jighefee, Hadeel; Najjar, Hoda; Ahmed, Muna; Qush, Abeer; Awwad, Sara; ... more authors ( MDPI , 2021 , Article Review)
      The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a pandemic as of March 2020, creating a global crisis and claiming millions of lives. To halt the pandemic and alleviate its impact on society, ...

    • Antibody Response to SARS-CoV-2: A Cohort Study in Qatar's Primary Care Settings. 

      Syed, Mohamed Ahmed; Al Nuaimi, Ahmed Sameer; Nasrallah, Gheyath K; Althani, Asmaa Ali J F; Zainel, Abduljaleel Abdullatif; ... more authors ( SAGE Publications , 2021 , Article)
      Globally, countries are rolling out Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) quarantine policies and vaccination programs. Research studies are needed in helping understand the likelihood of acquired ...

    • COVID-19 infection presented as Guillain-Barre Syndrome: Report of two new cases and review of 116 reported cases and case series 

      Elzouki, Abdel-Naser; A.M. Osman, Maab; A.E. Ahmed, Mohanad; Al-Abdulmalek, Abdulrahman; Altermanini, Mohammad; ... more authors ( Elsevier , 2021 , Article)
      Aims: Corona virus disease 2019 (COVID 19) is a pandemic infectious disease of 2020, which often presents with respiratory and gastrointestinal symptoms. The behavior of the virus and its full clinical picture has not been ...

    • Waning of BNT162b2 Vaccine Protection against SARS-CoV-2 Infection in Qatar. 

      Chemaitelly, Hiam; Tang, Patrick; Hasan, Mohammad R; AlMukdad, Sawsan; Yassine, Hadi M; ... more authors ( Massachusetts Medical Society , 2021 , Article)
      Waning of vaccine protection against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or coronavirus disease 2019 (Covid-19) is a concern. The persistence of BNT162b2 (Pfizer-BioNTech) vaccine ...

    • Pfizer-BioNTech mRNA BNT162b2 Covid-19 vaccine protection against variants of concern after one versus two doses. 

      Abu-Raddad, Laith J; Chemaitelly, Hiam; Yassine, Hadi M; Benslimane, Fatiha M; Al Khatib, Hebah A; ... more authors ( Oxford University Press , 2021 , Article)
      Strategies for rolling out vaccination against Coronavirus Disease 2019 (Covid-19) varied across countries. A key question is whether delaying administration of the second vaccine dose to vaccinate the largest number of ...

    • SARS-CoV-2 antibody-positivity protects against reinfection for at least seven months with 95% efficacy 

      Laith J., Abu-Raddad; Chemaitelly, Hiam; Coyle, Peter; Malek, Joel A.; Ahmed, Ayeda A.; ... more authors ( Elsevier , 2021 , Article)
      Background Reinfection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been documented, raising public health concerns. SARS-CoV-2 reinfections were assessed in a cohort of antibody-positive persons ...

    • mRNA-1273 COVID-19 vaccine effectiveness against the B.1.1.7 and B.1.351 variants and severe COVID-19 disease in Qatar 

      Chemaitelly, Hiam; Yassine, Hadi M.; Benslimane, Fatiha M.; Al Khatib, Hebah A.; Tang, Patrick; ... more authors (2021 , Article)
      The SARS-CoV-2 pandemic continues to be a global health concern. The mRNA-1273 (Moderna) vaccine was reported to have an efficacy of 94.1% at preventing symptomatic COVID-19 due to infection with ‘wild-type’ variants in a ...

    • COVID-19 and Migrants in the GCC states: Challenges, responses and key lessons 

      Rahman, Md Mizanur ( College of Arts and Sciences - Gulf Studies Center , 2021 , Working Paper)
      As the COVID-19 pandemic unfolds, the GCC countries face an unprecedented challenge of controlling the spiralling COVID-19 cases. The challenge has become even more formidable in containing the virus among non-national ...

    • Occupational changes during the COVID-19 lockdown in Jordan 

      Malkawi, Somaya H.; Alqatarneh, Nisrin S.; Malkawi, Asma H.; Amro, Ahmad F.Saleem; Crowe, Terry K. ( Taylor and Francis , 2021 , Article)
      Background: Measures to limit the spread of COVID-19 have disrupted the lives of countless millions of individuals worldwide. Objective: To explore the experiences of occupational disruption and changing social roles among ...

    • Epidemiological impact of prioritising SARS-CoV-2 vaccination by antibody status: Mathematical modelling analyses 

      Ayoub, H.H.; Ayoub, Houssein H.; Chemaitelly, Hiam; Makhoul, Monia; Al Kanaani, Zaina; ... more authors ( BMJ Publishing Group , 2021 , Article)
      Background Vaccines against SARS-CoV-2 have been developed, but their availability falls far short of global needs. This study aimed to investigate the impact of prioritising available doses on the basis of recipient ...

    • SARS-CoV-2 seroprevalence in the urban population of Qatar: An analysis of antibody testing on a sample of 112,941 individuals 

      Peter V., Coyle; Chemaitelly, Hiam; Ben Hadj Kacem, Mohamed Ali; Abdulla Al Molawi, Naema Hassan; El Kahlout, Reham Awni; ... more authors ( Elsevier , 2021 , Article)
      The study objective was to the assess level of detectable severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies in the urban population of Qatar. Antibody testing was performed on residual blood specimens ...

    • SARS-CoV-2 Infection Is at Herd Immunity in the Majority Segment of the Population of Qatar. 

      Al-Thani, Mohamed H; Farag, Elmoubasher; Bertollini, Roberto; Al Romaihi, Hamad Eid; Abdeen, Sami; ... more authors ( Oxford University Press , 2021 , Article)
      Qatar experienced a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic that disproportionately affected the craft and manual worker (CMW) population, who comprise 60% of the total population. This study ...

    • Development and Productive use of Virtual Pandemic Awareness Course during COVID-19 Outbreak to Stimulate STEM Curiosity in High School Students 

      Alkhair, Shahad; Elhawary, Enas; ali, ruba; Siby, Nitha; Aledamat, Rania; ... more authors ( Qatar University Press , 2021 , Poster)
      In early 2020 when Covid-19 hit the globe, it caused significant destruction to the educational process. Schools were shut down, teachers and students struggled to adapt to the new method of learning. Meanwhile, Students ...

    • Social Attitudes, Behavior, and Consequences surrounding COVID-19 in Qatar: Findings from a Large-scale Online Survey 

      Gengler, Justin; Lari, Noora; Al-Khelaifi, Buthaina; Al Thani, Maryam F.; El-Kassem, Rima Charbaji; ... more authors ( Qatar University Press , 2021 , Poster)
      Amid the outbreak of the contagious novel Coronavirus (COVID-19), states were put in an unprecedented situation never encountered before. Qatari authorities applied certain preventive measures to contain the spread of the ...

    • Depression-anxiety in the Adult Population of Qatar during the First Year of COVID-19 

      Khaled, Salma Mawfek; Amro, Iman; Bader, Lina; Bellaj, Tarek; Marzouki, Yousri; ... more authors ( Qatar University Press , 2021 , Poster)
      There is limited data from Arabic-speaking countries on risk factors for depression and anxiety during the COVID-19 pandemic. Country-specific data is necessary given differences in culture, demographics, and COVID-19 ...

    • 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 

      Elsayed, Basant Moustafa; Altarawneh, Lina; Doi, Suhail; Chivese, Tawanda ( 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 ...