in 1, the cdc already knew there were evidences that healthy people wearing masks may prevent from getting infection
in 1, the cdc already knew there were evidences that healthy people wearing masks may prevent from getting infection
nevertheless, mechanistic studies found that surgical masks could prevent transmission of human coronavirus and influenza virus infections if worn by infected persons ( 2).", "however, as with hand hygiene, face masks might be able to reduce the transmission of other infections and therefore have value in an influenza pandemic when healthcare resources are stretched.", "in addition, persons caring for ill family members at home (e.g., a parent of a child exhibiting influenza symptoms) might use face masks to avoid infection when in close contact with a patient, just as health care personnel wear masks in health care settings."


































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