Browsing by Author "Nizar Latif, Ali"

Now showing items 1-3 of 3

    • COVID-19 risk score as a public health tool to guide targeted testing: A demonstration study in Qatar 

      J. Abu-Raddad, Laith; Dargham, Soha; Chemaitelly, Hiam; Coyle, Peter; Al Kanaani, Zaina; ... more authors ( Public Library of Science , 2022 , Article)
      We developed a Coronavirus Disease 2019 (COVID-19) risk score to guide targeted RTPCR testing in Qatar. The Qatar national COVID-19 testing database, encompassing a total of 2,688,232 RT-PCR tests conducted between February ...

    • Introduction and expansion of the SARS-CoV-2 B.1.1.7 variant and reinfections in Qatar: A nationally representative cohort study 

      J. Abu-Raddad, Laith; Chemaitelly, Hiam; H. Ayoub, Houssein; Coyle, Peter; A. Malek, Joel; ... more authors ( Public Library of Science , 2021 , Article)
      Background The epidemiology of the SARS-CoV-2 B.1.1.7 (or Alpha) variant is insufficiently understood. This study’s objective was to describe the introduction and expansion of this variant in Qatar and to estimate the ...

    • Reporting of RT-PCR cycle threshold (Ct) values during the first wave of COVID-19 in Qatar improved result interpretation in clinical and public health settings 

      V. Coyle, Peter; Hassan Al Molawi, Naema; Ali Ben Hadj Kacem, Mohamed; Awni El Kahlout, Reham; Al Kuwari, Einas; ... more authors ( Microbiology Society , 2022 , Article)
      Introduction. The cycle threshold (Ct) value in real-time PCR (RT-PCR) is where a target-specific amplification signal becomes detectable and can infer viral load, risk of transmission and recovery. Use of Ct values in ...