A Moderna Spikevax COVID-19 vaccine is seen at a drugstore in Cypress, Texas, Sept. 20, 2023. On Thursday, Feb. 1, 2024, the Centers for Disease Control and Prevention said the updated COVID-19 vaccine was 54% effective at preventing symptomatic infection in adults. The shot became available last year as a replacement vaccine designed to better protects against more recent COVID variants. (Melissa Phillip/Houston Chronicle via AP, File)
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