http://www.newsweek.com/ay-3-covid-subtype-explained-delta-variant-offshoot-1625785 > AY.3, a subtype of the COVID Delta variant, has sparked headlines in Israel in recent weeks after a spate of infections. > Google data for September 3 shows that rising numbers of people in the U.S. are now searching for information about AY.3, though details about this version of Delta are limited.