JERUSALEM (REUTERS): A fourth shot of a Covid-19 vaccine boosts antibodies to even higher levels than the third jab but it is still not enough to prevent Omicron infections, says a preliminary study in Israel. Read full story
JERUSALEM (REUTERS): A fourth shot of a Covid-19 vaccine boosts antibodies to even higher levels than the third jab but it is still not enough to prevent Omicron infections, says a preliminary study in Israel. Read full story