“Although two doses of the vaccine may still offer protection against severe disease caused by the Omicron strain, it’s clear from these preliminary data that protection is maximized with a third dose of our vaccine,” Pfizer CEO Albert Bourla said in a statement. ![]() Pfizer said two doses of the vaccine may still induce protection against severe disease. Scientists have speculated that the high jump in antibodies that comes with a third dose of COVID-19 vaccines might be enough to counter any decrease in effectiveness.Īntibody levels predict how well a vaccine may prevent infection with the coronavirus but they are just one layer of the immune system’s defenses. The companies already are working to create an omicron-specific vaccine in case it’s needed. Pfizer announced the preliminary laboratory data in a press release and it hasn’t yet undergone scientific review. Pfizer and its partner BioNTech said lab tests showed a booster dose increased by 25-fold the level of so-called neutralizing antibodies against omicron. NEW YORK - Pfizer said Wednesday that a booster dose of its COVID-19 vaccine may protect against the new omicron variant even though the initial two doses appear significantly less effective.
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