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What is the protective value of different face masks?
SARS-CoV-2.The research, which appears in the journal JAMA Internal Medicine, provides more information for the public and clinicians on which masks to wear, and what modifications are likely to be effective.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.SARS-CoV-2, the virus that causes COVID-19, primarily infects a person’s respiratory tract. As the infection develops, a high amount of the virus builds up in a person’s saliva and other respiratory secretions.This explains a fundamental way in how the virus spreads: being ejected from a person with the infection via their nose or mouth as they talk, sing, sneeze, or cough.