hpjet
Member
"Pfizer CEO Albert Bourla said a fourth Covid-19 vaccine dose is necessary...'The protection you are getting from the third [dose],...[is] not that good against infections, ... doesn't last very long,' Bourla said on CBS's Face the Nation.?https://www.barrons.com/articles/pfizer-ceo-fourth-covid-vaccine-dose-51647256170
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