When and how to wear medical masks to protect against the new coronavirus?


Time: 02:17

Source: World Health Organization (WHO) - Mar 9, 2020

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If you do not have any respiratory symptoms, such as fever, cough, or runny nose, you do not need to wear a medical mask. When used alone, masks can give you a false feeling of protection and can even be a source of infection when not used correctly.

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