WHO: BA.2 to remain classified as Omicron

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Based on available data of transmission, severity, reinfection, diagnostics, therapeutics and impacts of vaccines, the group reinforced that the BA.2 sublineage should continue to be considered a variant of concern and that it should remain classified as Omicron. The group emphasized that BA.2 should continue to be monitored as a distinct sublineage of Omicron by public health authorities….

While reaching the above determination, the TAG-VE also looked at preliminary laboratory data from Japan generated using animal models without any immunity to SARS-CoV-2 which highlighted that BA.2 may cause more severe disease in hamsters compared to BA.1. They also considered real-world data on clinical severity from South Africa, the United Kingdom, and Denmark, where immunity from vaccination or natural infection is high: in this data, there was no reported difference in severity between BA.2 and BA.1.

Full WHO Statement


Let’s hope they have got that right, because the numbers from Denmark don’t look good….


Denmark: Covid cases and hospitalizations by vaccine status *33 UPDATES*





Photo by Jaison Lin on Unsplash





** This post was originally published on February 23, 2022 **