Pharmacist Karen Flynn gives a second Moderna booster shot to her mother Joann Pangonis, of New Boston, Pa., at Morris Drug in Mahanoy City, Pa., on Friday, April 1, 2022. An extra-contagious version of the omicron coronavirus variant has taken over the world. The variant scientists call BA.2 is now dominant in at least 68 countries, including the U.S. The World Health Organization says it makes up about 94% of sequenced omicron cases submitted in the most recent week to an international database. (Jacqueline Dormer/Republican-Herald via AP)