Browsing Public Health by Subject "epidemiology"

Now showing items 1-6 of 6

    • Duration of immune protection of SARS-CoV-2 natural infection against reinfection. 

      Chemaitelly, Hiam; Nagelkerke, Nico; Ayoub, Houssein H; Coyle, Peter; Tang, Patrick; ... more authors ( Oxford University Press , 2022 , Article)
      The future of the SARS-CoV-2 pandemic hinges on virus evolution and duration of immune protection of natural infection against reinfection. We investigated duration of protection afforded by natural infection, the effect ...

    • Effects of BA.1/BA.2 subvariant, vaccination, and prior infection on infectiousness of SARS-CoV-2 omicron infections. 

      Qassim, Suelen H; Chemaitelly, Hiam; Ayoub, Houssein H; AlMukdad, Sawsan; Tang, Patrick; ... more authors ( Oxford University Press , 2022 , Article)
      Compared to BA.1, BA.2 was associated with lower RT-qPCR cycle threshold (Ct) value-3.53 fewer cycles (95% CI: 3.46-3.60), signifying higher infectiousness. This may reflect higher viral load and/or longer duration of ...

    • Effects of SARS-CoV-2 Alpha, Beta, and Delta variants, age, vaccination, and prior infection on infectiousness of SARS-CoV-2 infections 

      Qassim, Suelen H.; Hasan, Mohammad R.; Tang, Patrick; Chemaitelly, Hiam; Ayoub, Houssein H.; ... more authors ( Frontiers Media , 2022 , Article)
      In 2021, Qatar experienced considerable incidence of SARS-CoV-2 infection that was dominated sequentially by the Alpha, Beta, and Delta variants. Using the cycle threshold (Ct) value of an RT-qPCR-positive test to proxy ...

    • Epidemiological impact of public health interventions against diabetes in Qatar: mathematical modeling analyses 

      Alareeki,Asalah; Awad,Susanne F.; Critchley,Julia A.; El-Nahas,Katie G.; Al-Hamaq,Abdulla O.; ... more authors ( Frontiers Media SA , 2023 , Article)
      Aims: To predict the epidemiological impact of specific, and primarily structural public health interventions that address lifestyle, dietary, and commuting behaviors of Qataris as well as subsidies and legislation to ...

    • Epidemiological investigation of the first 5685 cases of SARS-CoV-2 infection in Qatar, 28 February-18 April 2020 

      Al Kuwari, Hanan M.; Abdul Rahim, Hanan F.; Abu-Raddad, Laith J.; Abou-Samra, Abdul Badi; Al Kanaani, Zaina; ... more authors ( BMJ Publishing Group , 2020 , Article)
      © Authors 2020 Objective To define the epidemiological curve of COVID-19 in Qatar and determine factors associated with severe or critical illness. Design Case series of first 5685 COVID-19 cases in Qatar. Setting and ...

    • Interventions promoting physical activity among adults and children in the six Gulf Cooperation Council countries: Protocol for a systematic review 

      Pearson, Fiona; Huangfu, Peijue; Abu-Hijleh, Farah M.; Awad, Susanne F.; Abu-Raddad, Laith J.; ... more authors ( BMJ Publishing Group , 2020 , Article)
      Introduction Prevalence of overweight, obesity and diabetes are high and rising across the Gulf Cooperation Council (GCC) countries (Oman, Bahrain, Kuwait, Qatar, Saudi Arabia and the United Arab Emirates). In parallel, ...