Israeli study shows 4th shot of COVID-19 vaccine not able to block Omicron

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JERUSALEM, Jan 17 (Reuters) – A fourth shot of COVID-19 vaccine boosts antibodies to even higher levels than the third jab but it likely is not enough to prevent Omicron infections, according to a preliminary study in Israel.

The vaccines led to a increase in the number of antibodies “even a little bit higher than what we had after the third dose”, said Regev-Yochay, adding that the results were preliminary and not yet published.

Israel was the fastest country to roll out initial vaccinations a year ago and last month started offering a fourth shot, or a second booster, to the most vulnerable, high-risk groups. (Reporting by Ari Rabinovitch Editing by Mark Heinrich)

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