I've always wondered: why many people in Asian countries wear masks, and whether they work
- Written by C Raina MacIntyre, Professor of Infectious Diseases Epidemiology, Head of the School of Public Health and Community Medicine, UNSW
Face masks are a common sight in Asia. Why?David Chang/AAP
This is an article from I’ve Always Wondered, a series where readers send in questions they’d like an expert to answer. Send your question to alwayswondered@theconversation.edu.au
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