Pfizer, Moderna vaccines may greatly reduce risk of asymptomatic COVID-19 infection, study says
The Pfizer-BioNTech and Moderna messenger RNA (mRNA) vaccines for COVID-19 are authorised for emergency use in many countries. An mRNA vaccine is based on the segments of the genetic material, or RNA, of the novel coronavirus.
Source: The Economic Times Healthcare and Biotech News - Category: Pharmaceuticals Source Type: news
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