Browsing College of Health Sciences by Subject "vaccine"

Now showing items 1-9 of 9

    • BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar. 

      Tang, Patrick; Hasan, Mohammad R; Chemaitelly, Hiam; Yassine, Hadi M; Benslimane, Fatiha M; ... more authors ( Nature Researc , 2021 , Article)
      With the global expansion of the highly transmissible SARS-CoV-2 Delta (B.1.617.2) variant, we conducted a matched test-negative case-control study to assess the real-world effectiveness of COVID-19 messenger RNA vaccines ...

    • Clinical outcomes of Pfizer-BioNTech COVID-19 vaccine in children and adolescents: A systematic review 

      Al-Qudimat, Ahmad R.; Al-Zoubi, Raed M.; Elaarag, Mai; Nashwan, Abdulqadir J.; Hamze, Afaf K.; ... more authors ( John Wiley and Sons Inc , 2022 , Article Review)
      Background & Aims: The BioNTech-Pfizer vaccine is the only vaccine offered to children among all available vaccines. However, limited evidence is available about the clinical outcomes of COVID-19 vaccines, especially among ...

    • COVID-19 Vaccine Hesitancy in a Representative Education Sector Population in Qatar 

      Al-Mulla, Reem; Abu-Madi, Marawan; Talafha, Qusai M; Tayyem, Reema F; Abdallah, Atiyeh M ( MDPI , 2021 , Article)
      Even though vaccination programs have now started in earnest across the globe and in Qatar, vaccine hesitancy remains a barrier to effectively tackling the pandemic. Many factors influence willingness to take vaccines ...

    • Effectiveness of the BNT162b2 Covid-19 Vaccine against the B.1.1.7 and B.1.351 Variants. 

      Abu-Raddad, Laith J; Chemaitelly, Hiam; Butt, Adeel A ( Massachusetts Medical Society , 2021 , Other)
      The messenger RNA vaccine BNT162b2 (Pfizer–BioNTech) has 95% efficacy against coronavirus disease 2019 (Covid-19). Qatar launched a mass immunization campaign with this vaccine on December 21, 2020. As of March 31, 2021, ...

    • 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 ...

    • Level of Maternal Respiratory Syncytial Virus (RSV) F Antibodies in Hospitalized Children and Correlates of Protection. 

      Taleb, Sara A; Al-Ansari, Khalid; Nasrallah, Gheyath K; Elrayess, Mohamed A; Al-Thani, Asmaa A; ... more authors (2021)
      RSV is a major cause of lower respiratory infections among children, where no vaccine is available. The stabilized form of the fusion (F) protein, pre-F, is a leading vaccine candidate targeting different populations, ...

    • Relative infectiousness of SARS-CoV-2 vaccine breakthrough infections, reinfections, and primary infections. 

      Abu-Raddad, Laith J; Chemaitelly, Hiam; Ayoub, Houssein H; Tang, Patrick; Coyle, Peter; ... more authors ( Springer , 2022 , Article)
      SARS-CoV-2 breakthrough infections in vaccinated individuals and in those who had a prior infection have been observed globally, but the transmission potential of these infections is unknown. The RT-qPCR cycle threshold ...

    • 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 ...