The variant, called KP.2, now makes up the largest share of new infections in the U.S.

The variant, called KP.2, now makes up the largest share of new infections in the U.S.

Disease experts anticipate a small uptick in Covid cases this summer, as a new variant spreads.

The KP.2 variant represents 28% of Covid infections in the U.S., up from just 6% in mid-April, according to data released Friday by the Centers for Disease Control and Prevention.

KP.2 became dominant at the end of April — meaning it accounts for the largest share of new cases — outpacing the JN.1 variant, which took over in the winter.