Pfizer, Moderna COVID-19 vaccines highly effective after first shot in real-world use
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COVID-19 vaccines developed by Pfizer Inc with BioNTech SE and Moderna Inc reduced risk of infection by 80% two weeks or more after the...
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COVID-19 vaccines developed by Pfizer Inc with BioNTech SE and Moderna Inc reduced risk of infection by 80% two weeks or more after the...
Full ArticleWatch VideoResearchers test vaccines in adults first, then typically move down the age brackets and that includes Moderna and..
The risk of infection fell 90% by two weeks after the second shot, the study of nearly 4,000 US healthcare personnel and first..