What is BA.4.6? CDC’s new COVID ‘variant of concern’ is beating past Omicron strains
New lineages of the Omicron COVID variant, like BA.4 and BA.5, are helping spark a wave of reinfections, as people who previously caught COVID-19 contract COVID again. Now the US Centers for Disease Control and Prevention (CDC) is tracking a new “variant of concern”: BA.4.6. This week, the CDC included the BA.4 spinoff in its