Pfizer-BioNTech’s vaccine weakens a bit over time, company data shows
[ad_1] The effectiveness of the Pfizer-BioNTech vaccine decreases slightly over time. newly published data from companies, but remains strong in preventing serious diseases. Findings with coronavirus cases rising again in many states The Biden administration’s talks on making a booster shot. The study showed that the vaccine had a very high efficacy of 96 percent …
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