Live Updates: Israel trials 4th dose of COVID-19 vaccine (Associated Press)

Associated Press: Live Updates: Israel trials 4th dose of COVID-19 vaccine. “Israel has begun trials of a fourth dose of coronavirus vaccine in what is believed to be the first study of its kind. The trial began at Sheba Medical Center, outside Tel Aviv, with 150 medical personnel who received a booster dose in August receiving a fourth shot of the Pfizer/BioNTech vaccine. The staff receiving the additional dose were tested and found to have low antibody levels.”

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