"FLiRT" COVID variants are now more than a third of U.S. cases. Scientists share what we know about them so far.The KP.2 variant is rapidly becoming the dominant strain in the US, representing a projected 35.3% of infections.The fast-growing FLiRT variants are distinct from JN.1 and are being closely monitored for changes and impact on infection rates.
There's a New Covid Variant. What Will That Mean for Spring and Summer?KP.2 variant, part of FLiRT subset, slightly more infectious & immune-evading than JN.1, monitoring for potential summer surge.