Importance Several studies were conducted to estimate the average incubation period of
COVID-19; however, the incubation period of COVID-19 caused by different SARS-CoV-2 …

Background: Asymptomatic infections are potential sources of transmission for coronavirus
disease 2019, especially during the epidemic of the SARS-CoV-2 Omicron variant. We …

Our analysis of data collected from multiple epidemics in Hong Kong indicated a shorter
serial interval and generation time of infections with the SARS-CoV-2 Omicron variant. The …

SARS‐CoV‐2 Omicron variant seemed to cause milder disease compared to previous
predominated variants. We aimed to conduct a meta‐analysis to assess the pooled …

To clarify transmissibility of the severe acute respiratory syndrome coronavirus 2 Omicron
variant, we determined serial intervals and secondary attack rates among household …

The Omicron variant was first detected in October 2021, which evolved from the original
SARS‐CoV‐2 strain and was found to possess many mutations. Immune evasion was one of …

The omicron variant (B. 1.1. 529) of severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) was the predominant variant in South Korea from late January 2022. In this study, we …

The Coronavirus disease 2019 (COVID-19) pandemic poses a great threat to global public
health. The original wild-type strain of severe acute respiratory syndrome coronavirus 2 …

新型冠状病毒Omicron (B. 1.1. 529) 变异株具有传播力强, 传播速度快, 免疫逃逸显著等特点,
给新型冠状病毒肺炎疫情防控带来新的挑战. 该变异株于2021 年11 月在南非被发现后, 历时2 …

The SARS-CoV-2 Omicron variant has a growth advantage over the Delta variant because
of higher transmissibility, immune evasion or shorter serial interval. Using S gene target …