Categories Articles Pfizer Says Tweaked COVID-19 Vaccines Boost Omicron Protection Post author By crystalg Post date June 25, 2022 TIME Tags boost, COVID19, Omicron, Pfizer, Protection, Says, Tweaked, vaccines ← Humans’ middle ears evolved from fish gills, scientists conclude → Google says attackers worked with ISPs to deploy Hermit spyware on Android and iOS