Omicron Subvariants BA.2, BA.2.12.1 Make Up More Than 90% Of COVID-19 Variants In US, CDC Estimates

Reuters (4/19, Satija) reports, “The BA.2 sub-variant of Omicron and its sublineage BA.2.12.1 is estimated to make up more than 90% of the coronavirus variants in the United States as of April 16, the U.S. Centers for Disease Control and Prevention (CDC)...