Fabric masks work against coronavirus

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Researchers at McMaster University in Canada have used fabric masks to counteract the spread of coronavirus, Sputnik reports.








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https://ir.sputniknews.com/world/202005236431028-%DA%A9%D8%A7%D8%B1%D8%A7%DB%8C%DB%8C-%D9%85%D8%A7%D8%B3%DA%A9%D9%87%D8%A7%DB%8C-%D9%BE%D8%A7%D8%B1%DA%86%D9%87%D8%A7%DB%8C-%D8%AF%D8%B1-%D9%85%D9%82%D8%A7%D8%A8%D9%84-%DA%A9%D8%B1%D9%88%D9%86%D8%A7%D9%88%DB%8C%D8%B1%D9%88%D8%B3/

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