In late 2020, after circulating for almost a year in the human population, severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) exhibited a major step change in its …

Since the first cases of COVID-19 were documented in Wuhan, China in 2019, the world has
witnessed a devastating global pandemic, with more than 238 million cases, nearly 5 million …

The animal reservoir of SARS-CoV-2 is unknown despite reports of SARS-CoV-2-related
viruses in Asian Rhinolophus bats,,–, including the closest virus from R. affinis, RaTG13 …

The emergence of the Omicron variant of SARS-CoV-2 is an urgent global health concern. In
this study, our statistical modelling suggests that Omicron has spread more rapidly than the …

The emergence of the highly transmissible B. 1.1. 529 Omicron variant of severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) is concerning for antibody …

During the current coronavirus disease 2019 (COVID-19) pandemic, a variety of mutations
have accumulated in the viral genome of severe acute respiratory syndrome coronavirus 2 …

The past several months have witnessed the emergence of SARS-CoV-2 variants with novel
spike protein mutations that are influencing the epidemiological and clinical aspects of the …

SARS-CoV-2 entry requires sequential cleavage of the spike glycoprotein at the S1/S2 and
the S2ʹ cleavage sites to mediate membrane fusion. SARS-CoV-2 has a polybasic insertion …

We report that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta spike
mutation P681R plays a key role in the Alpha-to-Delta variant replacement during the …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the global
COVID-19 pandemic. Rapidly spreading SARS-CoV-2 variants may jeopardize newly …