Fourth Covid-19 vaccine jab offers little more protection against Omicron

More than half a million Israelis have now received a second booster dose against the SARS-CoV-2 virus, but it doesn’t appear to really increase protection against the Omicron variant. — dpa

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.