Clinical severity of COVID-19 caused by SARS-CoV-2 variants and the effectiveness of mRNA vaccines against them
A recent study examined the clinical severity of the SARS-CoV-2 Alpha, Delta, and Omicron VOCs and compared vaccine effectiveness against each VOC.
United States Alpha Vocs Clinical Severity Prospective Observational Image Credit Prospective Observational Study
Source: news-medical.net