Common SARS-CoV-2 Mutation May Be Making COVID More Contagious

Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center. Most SARS-CoV-2 virus strains feature a specific mutation that makes them more transmissible, to the point that these strains now predominate globally, new evidence shows. In contrast to a greater variety of strains early in the pandemic, now 99.9% of circulating SARS-CoV-2 strains in…