Nearly Half of All U.S. COVID Cases Are This New Variant

The latest SARS-CoV-2 variant, JN.1, was first detected in the U.S. in September 2023. By mid-December, it accounted for about half of all COVID cases in the country,1 and calls to get the latest “updated” COVID shot resumed. Cases associated with this variant are also on the rise in the U.K., China and India.2

According to the U.S. Centers for Disease Control and Prevention, the rapid spread of JN.1 suggests it may be more transmissible and/or has greater immune-evading abilities:3

“JN.1 is si...