{"id":1452,"date":"2020-10-09T08:58:17","date_gmt":"2020-10-09T15:58:17","guid":{"rendered":"https:\/\/depts.washington.edu\/pandemicalliance\/?p=1452"},"modified":"2020-10-12T09:04:39","modified_gmt":"2020-10-12T16:04:39","slug":"what-do-we-know-about-sars-cov-2-transmission-a-systematic-review-and-meta-analysis-of-the-secondary-attack-rate-and-associated-risk-factors","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/pandemicalliance\/2020\/10\/09\/what-do-we-know-about-sars-cov-2-transmission-a-systematic-review-and-meta-analysis-of-the-secondary-attack-rate-and-associated-risk-factors\/","title":{"rendered":"What Do We Know about SARS-CoV-2 Transmission? A Systematic Review and Meta-Analysis of the Secondary Attack Rate and Associated Risk Factors"},"content":{"rendered":"<ul>\n<li>A systematic review and meta-analysis of the secondary attack rate (SAR) of SARS-Cov-2 in household and healthcare settings indicated that the SAR among symptomatic people was higher than that for asymptomatic people (RR=3.2). The SAR is the proportion of contacts of a SARS-CoV-2 case who subsequently became infected. Adults showed higher susceptibility to infection than children (RR=1.7), and spouses of index cases were more likely to be infected compared to other household contacts (RR=2.4). In healthcare settings, the pooled SAR was estimated at 0.7%, while the pooled household SAR was estimated at 18%. The authors suggest that these results indicate a need to account for setting-specific transmission risk, and that individuals with confirmed infection should be isolated away from other household members when possible.<\/li>\n<\/ul>\n<p>Koh et al. (Oct 8, 2020). What Do We Know about SARS-CoV-2 Transmission? A Systematic Review and Meta-Analysis of the Secondary Attack Rate and Associated Risk Factors. PLOS ONE. <a href=\"https:\/\/doi.org\/10.1371\/journal.pone.0240205\">https:\/\/doi.org\/10.1371\/journal.pone.0240205<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A systematic review and meta-analysis of the secondary attack rate (SAR) of SARS-Cov-2 in household and healthcare settings indicated that the SAR among symptomatic people was higher than that for asymptomatic people (RR=3.2). The SAR is the proportion of contacts of a SARS-CoV-2 case who subsequently became infected. Adults showed higher susceptibility to infection than&#8230;<\/p>\n<div><a class=\"more\" href=\"https:\/\/depts.washington.edu\/pandemicalliance\/2020\/10\/09\/what-do-we-know-about-sars-cov-2-transmission-a-systematic-review-and-meta-analysis-of-the-secondary-attack-rate-and-associated-risk-factors\/\">Read more<\/a><\/div>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[38],"topic":[21],"class_list":["post-1452","post","type-post","status-publish","format-standard","hentry","category-article-summary","tag-transmission","topic-transmission"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/1452","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\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/comments?post=1452"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/1452\/revisions"}],"predecessor-version":[{"id":1454,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/1452\/revisions\/1454"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/media?parent=1452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/categories?post=1452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/tags?post=1452"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/topic?post=1452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}