https://www.cnbc.com/2021/04/21/scientist-who-helped-develop-pfizer-biontech-covid-vaccine-agrees-third-shot-is-needed-as-immunity-wanes.html


The chief medical officer of BioNTech told CNBC on Wednesday that people will likely need a third shot of its two-dose Covid-19 vaccine as immunity against the virus wanes, agreeing with previous comments made by Pfizer CEO Albert Bourla.


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