Surgical mask (the cheap one) reduces up to 75% of infections

Surgical mask (the cheap one) reduces up to 75% of infections

A new study in Hong Kong supports the health and policy authorities in recommending its use. Experiments by a team led by Dr Yuen Kwok Yung, a leading microbiologist from the University of Hong Kong who helped discover the SARS virus in 2003, show that the rate of transmission of...

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