Cases Of Potentially Faster Spreading Ay.4.2 Variant Hit 40 000 Up 10 000 In A Week
AY.4.2 is a sub-lineage of the Delta variant that appears to have mutated a growth advantage compared to other Delta versions. However, AY.4.2 also does not appear to be any more vaccine-resistant than Delta and has failed to gain much of a foothold in the U.S., current data shows. The variant is found almost entirely in the U.K., where it has accounted for around 15 percent of samples sequenced per day recently....