New COVID variant KP.3 climbs to 25%, now largest in CDC estimates CBS NewsCOVID Omicron FLiRT subvariants KP.2, KP.3, KP.1.1 FortuneA guide to managing COVID this summer The Seattle TimesNew 'FLiRT' COVID Variants Could Be Driving an Uptick in Cases. Here's How to Avoid Them Scientific American