Israeli Study Shows 4th Shot of COVID-19 Vaccine Less Effective on Omicron
A fourth shot of COVID-19 vaccine boosts antibodies to even higher levels than the third jab but it is not enough to prevent Omicron infections, according to a preliminary study in Israel. Israel's Sheba Medical Center has given second booster shots in a trial among its staff and is studying…
Asharq Al-Awsat ·
Asharq Al-Awsat
