ve">Maria Van Kerkhove Retweeted

Mrigank Shail, MD

@mrigankshail

Quick update on Omicron variant of concern (B.1.1.529) and it's four sub-lineages: BA.1, BA.1.1, BA.2 and BA.3 provided by

@WHO

's Dr

@mvankerkhove

on 08 Feb, 2022.