Loading...
Effects of BA.1/BA.2 subvariant, vaccination, and prior infection on infectiousness of SARS-CoV-2 omicron infections.
Citations
Altmetric:
Video URL
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
Files
Loading...
taac068.pdf
Adobe PDF, 803.03 KB
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.