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 doses, Forbes reported. The proportion of antibodies dropped from 76% four weeks after the second shot to 19% at weeks 12 to 14. The antibodies dropped even faster after the third dose, the booster shot. Between the third and eighth week, antibodies fell 5.4-fold for omicron.
