A fourth injection of the Covid-19 vaccine raises antibodies to even higher levels than the third, but it probably won’t be enough to prevent COVID-19 infections. Omicron variant, according to a preliminary study conducted in Israel.
The vaccines caused an increase in the number of antibodies “even a little higher than the one we had after the third doseGili Regev-Yochay said, adding that the results are preliminary and have not been published yet.
Israel was the fastest country to roll out initial vaccines a year ago and last month he began offering a fourth injection, or a second booster, to the most vulnerable and high-risk groups.
