Health
Pfizer, Moderna COVID-19 vaccines highly effective after first shot in real-world use: US study – Gulf News
Study looked at the effectiveness of mRNA vaccines among 3,950 participants in six states
Image Credit: Reuters
COVID-19 vaccines developed by Pfizer Inc with BioNTech SE and Moderna Inc reduced the risk of infection by 80% two weeks or more after the first of two shots, according to data from a real-world US study released on Monday.
The risk of infection fell 90% by two weeks after the second shot, the study of just under 4,000 vaccinated U.S. healthcare personnel and first responders found.
The study by the US Centers for Disease Control and Prevention (CDC) evaluated the vaccines’…
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