{"id":7739,"date":"2020-06-23T12:15:42","date_gmt":"2020-06-23T19:15:42","guid":{"rendered":"https:\/\/depts.washington.edu\/pandemicalliance\/?p=7739"},"modified":"2021-03-26T12:16:25","modified_gmt":"2021-03-26T19:16:25","slug":"respiratory-virus-shedding-in-exhaled-breath-and-efficacy-of-face-masks","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/pandemicalliance\/2020\/06\/23\/respiratory-virus-shedding-in-exhaled-breath-and-efficacy-of-face-masks\/","title":{"rendered":"Respiratory Virus Shedding in Exhaled Breath and Efficacy of Face Masks"},"content":{"rendered":"<ul>\n<li><span data-contrast=\"auto\">Use of a surgical mask significantly reduced the proportion of droplets and aerosols\u00a0<\/span><span data-contrast=\"auto\">with\u00a0<\/span><span data-contrast=\"auto\">detectable virus among children and adults with confirm<\/span><span data-contrast=\"auto\">ed<\/span><span data-contrast=\"auto\">\u00a0seasonal co<\/span><span data-contrast=\"auto\">rona<\/span><span data-contrast=\"auto\">virus and seasonal influenza infection. Among\u00a0<\/span><span data-contrast=\"auto\">17\u00a0<\/span><span data-contrast=\"auto\">patients\u00a0<\/span><span data-contrast=\"auto\">with seasonal coronavirus,\u00a0<\/span><span data-contrast=\"auto\">virus was detected in 30% of droplets and 40% of aerosols among those randomized to not wear a\u00a0<\/span><span data-contrast=\"auto\">surgical\u00a0<\/span><span data-contrast=\"auto\">mask compared to 0% detection in both droplets and aerosols of those randomized to wear a\u00a0<\/span><span data-contrast=\"auto\">surgical\u00a0<\/span><span data-contrast=\"auto\">mask.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"43\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">Similar results were found for the effect of surgical masks worn by patients with seasonal influenza, but there was no effect of wearing a surgical mask among those with a\u00a0<\/span><span data-contrast=\"auto\">rhinovirus<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">infection<\/span><span data-contrast=\"auto\">.\u00a0<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<p><i><span data-contrast=\"none\">Leung et al. (May 2020). Respiratory Virus Shedding in Exhaled Breath and Efficacy of Face Masks. Nature Medicine.\u00a0<\/span><\/i><a href=\"https:\/\/doi.org\/10.1038\/s41591-020-0843-2\"><span data-contrast=\"none\">https:\/\/doi.org\/10.1038\/s41591-020-0843-2<\/span><\/a><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559685&quot;:720,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Use of a surgical mask significantly reduced the proportion of droplets and aerosols\u00a0with\u00a0detectable virus among children and adults with confirmed\u00a0seasonal coronavirus and seasonal influenza infection. Among\u00a017\u00a0patients\u00a0with seasonal coronavirus,\u00a0virus was detected in 30% of droplets and 40% of aerosols among those randomized to not wear a\u00a0surgical\u00a0mask compared to 0% detection in both droplets and aerosols of&#8230;<\/p>\n<div><a class=\"more\" href=\"https:\/\/depts.washington.edu\/pandemicalliance\/2020\/06\/23\/respiratory-virus-shedding-in-exhaled-breath-and-efficacy-of-face-masks\/\">Read more<\/a><\/div>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[],"topic":[22],"class_list":["post-7739","post","type-post","status-publish","format-standard","hentry","category-article-summary","topic-non-pharmaceutical-interventions"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/7739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/comments?post=7739"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/7739\/revisions"}],"predecessor-version":[{"id":7740,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/7739\/revisions\/7740"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/media?parent=7739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/categories?post=7739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/tags?post=7739"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/topic?post=7739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}