Long queues to buy face masks amid a citywide shortage, in Hong Kong on February 5. Photo: AP

Letters | Coronavirus scare: how helpful are masks really in preventing infection?

Name: SCMP
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Published: 6:45am, 7 Feb, 2020

Updated: 6:45am, 7 Feb, 2020

Long queues to buy face masks amid a citywide shortage, in Hong Kong on February 5. Photo: AP

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