Model Shows Covid Spread Slowing if these two conditions are met. 2021-09-29 By Tim Dunham New projections from an epidemiologist at the University of North Carolina at Chapel Hill paint a positive picture of herd immunity and fewer COVID-19 cases through the coming winter. Filed Under: Categories: News More from Dittmer Lab Kaposi Sarcoma remains common in persons living with HIV 黑料网 research program studies COVID-19 variants It鈥檚 Day 6 of Covid, and a Rapid Antigen Test Comes Back Positive. Stay Home, Say Virologists.