How worried do you need to be about the BA.2 coronavirus variant? 2022-02-02 By Tim Dunham https://www.today.com/health/health/ba2-coronavirus-variant-rcna14367 Filed Under: Categories: News More from Dittmer Lab Kaposi Sarcoma remains common in persons living with HIV UNC research program studies COVID-19 variants It’s Day 6 of Covid, and a Rapid Antigen Test Comes Back Positive. Stay Home, Say Virologists.