The massive scale of the global SARS-CoV-2 sequencing effort created new opportunities
and challenges for understanding SARS-CoV-2 evolution. Rapid detection and assessment …

The origin of SARS-CoV-2 has evoked heated debate and strong accusations, yet
seemingly little resolution. I review the scientific evidence on the origin of SARS-CoV-2 and …

Background The omicron variant (B. 1.1. 529) of SARS-CoV-2 has demonstrated partial
vaccine escape and high transmissibility, with early studies indicating lower severity of …

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 …

Soon after the emergence and global spread of the SARS-CoV-2 Omicron lineage BA. 1,
another Omicron lineage, BA. 2, began outcompeting BA. 1. The results of statistical analysis …

Abstract The SARS-CoV-2 Delta variant has spread rapidly worldwide. To provide data on
its virological profile, we here report the first local transmission of Delta in mainland China …

Repeated emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
variants with increased fitness underscores the value of rapid detection and characterization …

Abstract The SARS-CoV-2 Delta (Pango lineage B. 1.617. 2) variant of concern spread
globally, causing resurgences of COVID-19 worldwide,. The emergence of the Delta variant …

Soon after the emergence and global spread of a new severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) Omicron lineage, BA. 1 (ref,), another Omicron lineage, BA. 2 …

The novel coronavirus disease (COVID‐19) outbreak that emerged at the end of 2019 has
now swept the world for more than 2 years, causing immeasurable damage to the lives and …