The World – Protection From 4th Dose Of COVID Vaccine Wanes Completely Within Months
Protection From 4th Dose of COVID Vaccine Wanes Completely Within Months: Study An Israeli study found that antibody levels after a fourth dose of the Pfizer BioNTech COVID-19 vaccine returned to similar levels as after the 3rd dose after about four months. The study, conducted among health care workers at the Sheba Medical Center, the largest hospital … Read more