Home Uncategorized Omicron subvariant BA.2 to blame for rise in U.S. COVID cases, doctor says Omicron subvariant BA.2 to blame for rise in U.S. COVID cases, doctor says Daily Editor Apr 11, 2022 comments off Tweet on Twitter Share on Facebook Pinterest coronavirus coronavirus booster shot coronavirus pandemic coronavirus vaccine covid 19 covid-19 booster shot covid-19 pandemic covid-19 uptick covid-19 vaccine increase in cases long covid spike in cases