Researchers in Israel, the first country in the world to offer people a fourth shot of Covid-19 vaccines, say this additional jab does not provide much additional protection against the SARS-CoV-2 Omicron viral variant.
“The rise in antibody levels that we saw with both Moderna and Pfizer (Covid-19 vaccines) are slightly higher than what we saw after the third booster vaccine,” said lead researcher and Tel Aviv’s Sheba Medical Center infectious disease unit director Dr Gili Regev-Yochay.
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