Categories Articles Mix-and-match vaccines? Scientists say changing brands for your COVID booster provides more protection Post author By crystalg Post date April 27, 2022 Study Finds Tags Booster, Brands, Changing, COVID, mixandmatch, More, Protection, Provides, Scientists, vaccines ← An elite French counterterrorism unit gained worldwide fame for a daring raid on a hijacked plane 28 years ago → Billionaires Have Always Owned the Media. Musk Is No Great Threat