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Acasa => Coronavirus COVID-19 => Scientist who helped develop Pfizer-BioNTech Covid vaccine agrees third shot is needed as immunity wanes

Scientist who helped develop Pfizer-BioNTech Covid vaccine agrees third shot is needed as immunity wanes

The chief medical officer of BioNTech told CNBC that people will likely need a third shot of its two-dose Covid-19 vaccine as immunity against the virus wanes.

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