Pfizer Booster Shots Are Effective Against Omicron Variant, Israeli Study Says

Researchers at the Sheba Medical Center and from the Israeli Health Ministry examined the blood samples of 20 Sheba employees who received a booster at least a month ago, and 20 employees who are five or six months past their second shot and haven’t received a third shot. Employees with a booster were much more likely to neutralize the Omicron variant than the two-shot group, the study showed. But the booster shots were still less effective against preventing Omicron than other variants, including Delta, still the most prevalent strain of the virus circulating globally.