use of medicine : Omicron sublineage BA.2 remains a variant of concern

Tuesday, February 22, 2022

Omicron sublineage BA.2 remains a variant of concern

GENEVA — The BA.2 virus, a sublineage of the Omicron COVID-19 mutation, should continue to be considered a variant of concern, scientists convened by the World Health Organization (WHO) said in a statement

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