FILE - Pharmacist Kenni Clark prepares a booster dose of the Moderna COVID-19 vaccine during a vaccination clinic at City of Lawrence's "The Center", which serves seniors, families and the community, Wednesday, Dec. 29, 2021, in Lawrence, Mass. (AP Photo/Charles Krupa, File)
FILE - Pharmacist Kenni Clark prepares a booster dose of the Moderna COVID-19 vaccine during a vaccination clinic at City of Lawrence's "The Center," which serves seniors, families and the community, Wednesday, Dec. 29, 2021, in Lawrence, Mass. (AP Photo/Charles Krupa, File) 