In this April 26, 2021 file photo, a nursing student administers the Moderna COVID-19 vaccine at a vaccination center at UNLV, in Las Vegas. On Friday, April 8, 2022, The Associated Press reported on stories circulating online incorrectly claiming COVID-19 vaccines are causing a form of AIDS that is not related to HIV, long established as the cause of acquired immunodeficiency syndrome. (AP Photo/John Locher, File)