Prof. Yonatan Halevy, the director of Shaare Zedek Medical Center, told Reshet Bet this morning that COVID booster shots were highly effective.
"Those seriously ill with coronavirus have extremely long hospital stays, and remain connected to ECMO machines for weeks," he said.
"The vast majority of new cases have not been vaccinated," he added. "There is no doubt that the booster shot confers exceptional protection against serious illness."