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

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    taac068.pdf (803.0Kb)
    Date
    2022-05-27
    Author
    Qassim, Suelen H
    Chemaitelly, Hiam
    Ayoub, Houssein H
    AlMukdad, Sawsan
    Tang, Patrick
    Hasan, Mohammad R
    Yassine, Hadi M
    Al-Khatib, Hebah A
    Smatti, Maria K
    Abdul-Rahim, Hanan F
    Nasrallah, Gheyath K
    Al-Kuwari, Mohamed Ghaith
    Al-Khal, Abdullatif
    Coyle, Peter
    Kaleeckal, Anvar Hassan
    Shaik, Riyazuddin Mohammad
    Latif, Ali Nizar
    Al-Kuwari, Einas
    Jeremijenko, Andrew
    Butt, Adeel A
    Bertollini, Roberto
    Al-Romaihi, Hamad Eid
    Al-Thani, Mohamed H
    Abu-Raddad, Laith J
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    Abstract
    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 infection for BA.2. Natural immunity from previous infection and booster vaccination were associated with less infectious breakthrough infections.
    DOI/handle
    http://dx.doi.org/10.1093/jtm/taac068
    http://hdl.handle.net/10576/32061
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    • Biomedical Research Center Research [‎785‎ items ]
    • Biomedical Sciences [‎796‎ items ]
    • COVID-19 Research [‎848‎ items ]
    • Mathematics, Statistics & Physics [‎786‎ items ]
    • Public Health [‎480‎ items ]

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