Omicron BA.5 strain may shorten COVID immunity from 3 months to 28 days, research shows

Omicron BA.5 strain may shorten COVID immunity from 3 months to 28 days, research shows

New research shows the latest highly-transmissible COVID-19 omicron subvariants BA.4 and BA.5 may be shortening the window of immunity post-infection. https://abc7ne.ws/3RviE1x #omicron #omicronvariant #covid #coronavirus