New York Post
Even a fourth shot of a COVID-19 vaccine is “not good enough” to prevent Omicron, according to a preliminary study in Israel.
Sheba Hospital last month tested a fourth shot given to more than 270 medical workers, with 154 getting the Pfizer jab and 120 receiving Moderna.
The researchers revealed Monday that both groups showed a “slightly higher” increase in antibodies than after the third shot — but still not enough to prevent Omicron, the latest variant responsible for the vast majority of infections around the world.