JAMA study: Pfizer COVID shot's protection fades in weeks

A peer-reviewed paper published by the Journal of the American Medical Association concluded that immunity against the omicron coronavirus variant fades rapidly after a second and third dose of the Pfizer-BioNTech vaccine. The research by Danish scientists published in JAMA Network Open on Friday found antibody responses fell within weeks after second and third Pfizer … Continue reading JAMA study: Pfizer COVID shot’s protection fades in weeks