Fourth Pfizer Vaccine Shot Not Enough to Stop Omicron Infection, Israeli Study Suggests
(Worthy News) – A fourth dose of the COVID-19 vaccine increases the number of neutralizing antibodies, but the boost is probably not enough to provide protection against infection of the Omicron variant, findings of a preliminary study conducted by Israel’s Sheba Medical Center concluded.
“We know by now that the level of antibodies needed to be protected from Omicron and not to get infected is probably too high for this vaccine, even if it is a good vaccine,” said Prof. Gili Regev-Yochay, the lead researcher of the study, during a briefing Monday. “Thus, the vaccines (including Pfizer & Moderna), which were extremely effective against the earlier variants, are not as effective versus Omicron.”
Two weeks after administering a fourth Pfizer vaccine shot to 154 medical personnel from Sheba Medical Center, Regev-Yochay reported a “pretty nice” increase in the number of antibodies. A week ago, an additional 120 adults received the Moderna shot after previously getting three doses of the Pfizer vaccine. [ Source: Algemeiner (Read More…) ]