Tag: Subvariants

The White House COVID-19 Response Team and federal public health officials held a COVID-19 briefing on Tuesday as the new ...

“At present there are a number of Omicron sub-lineages we’re following closely, including BA.2, BA.4 and BA.5 and another recombinant ...

April 12, 2022The World Health Organization is analyzing a few dozen cases of two new sub-variants of the Omicron strain ...