What is the new COVID-19 variant BA.2, and will it cause another wave of infections in the US?
- Written by Prakash Nagarkatti, Professor of Pathology, Microbiology and Immunology, University of South Carolina

A new omicron subvariant of the virus that causes COVID-19, BA.2, is quickly becoming the predominant source of infections amid rising cases around the world. Immunologists Prakash Nagarkatti and Mitzi Nagarkatti of the University of South...