新型冠状病毒(新冠病毒) 奥密克戎变异株自2021 年11 月被发现后, 快速地在世界各地广泛传播,
目前已成为全球新冠病毒传播的主要流行毒株. 在奥密克戎变异株大流行的背景下 …

Since the emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Omicron variant in November 2021, the coronavirus diseases 2019 (COVID-19) epidemics …

It is critical to determine the real-world performance of vaccines against coronavirus disease
2019 (COVID-19) so that appropriate treatments and policies can be implemented. There …

Objective: This study aimed to investigate the infection status of Omicron in the population
and the association between COVID-19 vaccination and infection with Omicron. Methods …

Objective More than 90% of the Chinese population have completed 2 doses of inactivated
COVID-19 vaccines in Mainland China. However, after China government abandoned strict …

To the Editor: The latest variant of concern, Omicron, has become the dominant global
variant immediately after it was first reported in November 2021.[1] It contains> 30 mutations …

Background The Omicron variant of the coronavirus disease 2019 (COVID-19) virus has
spread rapidly worldwide, even in areas with high vaccination rates. Consequently, it has …

Background: Although many people received the COVID-19 vaccine, shortly after the
Chinese government announced that the three-year COVID-19 restrictions were being …

Introduction The protective effect of SARS-CoV-2 vaccines has become a global focus due
to Omicron variant pandemic. The effects of various SARS-CoV-2 vaccines are diverse …

Objective To explore the characteristics of severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2) reinfections caused by Omicron variant for providing a reference to the …