New study reports effectiveness of fourth COVID vaccine dose over six-month time frame

 https://www.israelnationalnews.com/news/362611

Sheba Medical Center, Israel’s largest medical center and a Newsweek top-10 ranked world’s best hospital for the last four years, published a study Thursday in the New England Journal of Medicine demonstrating the necessity for mRNA COVID-19 vaccine booster doses, and pinpointing the ideal timing for administering them.

The research, led by Dr. Michal Canetti at Columbia University, New York, and Professor Gili Regev-Yochay, studied the effectiveness of the BNT162b2 vaccine (Pfizer–BioNTech) in Sheba Medical Center healthcare workers, and concluded that the protection achieved by a third or fourth vaccine dose was significantly stronger than that of two doses alone.