During the coronavirus disease 2019 (Covid-19) pandemic, the emergence of the BA.1, BA.2, and BA.3 sublineages of the B.1.1.529 (omicron) variant of severe acute respiratory syndrome coronavirus 2 ...

The World Health Organisation (WHO) has said it is tracking several sublineages of Covid variant Omicron, including BA.1, BA.1.1, BA.2, and BA.3. The global health body is also looking at real-world ...

Time course for the evolution of significant SARS-CoV-2 variants, note the considerable divergence of the Omicron variants from all other variants, branching off from other variants as early as March ...

Panel A shows the mutations of the omicron BA.1 and BA.2 sublineages in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein. Panel B shows neutralizing antibody titers that ...

The World Health Organization has released a new report on Omicron sub-variant BA.2 which shows the strain accounted for 21.5% of all new Omicron cases analyzed worldwide in the first week of February ...

Cases of the SARS-CoV-2 variant Omicron have escalated globally over the past two months, with many countries experiencing peaks higher than previous variants. Now we are seeing cases of a sub-variant ...

The rapid outbreak of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has resulted in the coronavirus disease 2019 (COVID-19) pandemic. Since its emergence in 2019, SARS-CoV-2 has ...

In a recent article posted to the bioRxiv* server, researchers performed an experimental assessment of the antigenicity and infectivity of BA.2.86, a newly emerged severe acute respiratory syndrome ...

The BA.5 variant that dominated the summer wave of COVID-19 infections and hospitalizations has now fallen to 81.3% of new cases, according to estimates released Friday by the Centers for Disease ...