{"id":8466,"date":"2020-07-24T09:57:21","date_gmt":"2020-07-24T16:57:21","guid":{"rendered":"https:\/\/depts.washington.edu\/pandemicalliance\/?p=8466"},"modified":"2021-04-05T10:01:33","modified_gmt":"2021-04-05T17:01:33","slug":"a-large-covid-19-outbreak-in-a-high-school-10-days-after-schools-reopening-israel-may-2020","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/pandemicalliance\/2020\/07\/24\/a-large-covid-19-outbreak-in-a-high-school-10-days-after-schools-reopening-israel-may-2020\/","title":{"rendered":"A Large COVID-19 Outbreak in a High School 10 Days after Schools\u2019 Reopening, Israel, May 2020"},"content":{"rendered":"<ul>\n<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"43\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-contrast=\"auto\">An extensive outbreak investigation in a school (grades 7-12) in Jerusalem (Israel) found evidence of SARS-CoV-2 transmission wi<\/span><span data-contrast=\"auto\">thin the school. After re-opening<\/span><span data-contrast=\"auto\">\u00a0on May 17 after a\u00a0two month\u00a0closure, th<\/span><span data-contrast=\"auto\">e<\/span><span data-contrast=\"auto\">\u00a0first school outbreak occurred 10 days later. There was an indication that transmission was largely confined to certain grades, and to specific classrooms within those grades.\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<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"43\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-contrast=\"auto\">As part of the outbreak investigation, SARS-CoV-2 testing was conducted on 1,161 of 1,164 students and 151 of 152 staff members. Overall, 13.2% of students and 16.6% of staff<\/span><span data-contrast=\"auto\">\u00a0had\u00a0<\/span><span data-contrast=\"auto\">SARS-CoV-2 infection, of whom 43% of students and 76% of staff were symptomatic.<\/span><span data-contrast=\"auto\">\u00a0One emergency room visit was recorded and\u00a0<\/span><span data-contrast=\"auto\">there were\u00a0<\/span><span data-contrast=\"auto\">no hospitali<\/span><span data-contrast=\"auto\">z<\/span><span data-contrast=\"auto\">ations.<\/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=\"3\" data-aria-level=\"1\"><span data-contrast=\"auto\">Prevalence of SARS-CoV-2<\/span><span data-contrast=\"auto\">\u00a0among students<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">in the school\u00a0<\/span><span data-contrast=\"auto\">at the time of testing was highest in grades 7-9 (17.3% to 32.6%) compared to grades 10-12 (1.6%-4.5%). Even within the younger grades, cases appeared to be clustered within specific classrooms.\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<li data-leveltext=\"\uf0b7\" data-font=\"Symbol\" data-listid=\"43\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-contrast=\"auto\">An environmental school inspection repo<\/span><span data-contrast=\"auto\">rted crowded classes (<\/span><span data-contrast=\"auto\">35<\/span><span data-contrast=\"auto\">&#8211;<\/span><span data-contrast=\"auto\">38 students per class<\/span><span data-contrast=\"auto\">). While facemasks were initially required, this mandate was removed during a heatwave that occurred within days of the school re-opening.<\/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=\"5\" data-aria-level=\"1\"><span data-contrast=\"auto\">Con<\/span><span data-contrast=\"auto\">tact tracing of close contacts of cases from the school identified 87 additional cases.\u00a0<\/span><i><span data-contrast=\"auto\">[EDITORIAL NOTE: From this report, it is not clear how\u00a0<\/span><\/i><i><span data-contrast=\"auto\">many close contacts were tested or<\/span><\/i><i><span data-contrast=\"auto\">\u00a0the proportion of\u00a0<\/span><\/i><i><span data-contrast=\"auto\">contacts who were\u00a0<\/span><\/i><i><span data-contrast=\"auto\">positive for symptomatic versus asymptomatic cases]<\/span><\/i><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\">Stein-Zamir et al. (July 23, 2020). A Large COVID-19 Outbreak in a High School 10 Days after Schools\u2019 Reopening, Israel, May 2020.\u00a0Eurosurveillance.<\/span><\/i><i><span data-contrast=\"auto\">\u00a0<\/span><\/i><br \/>\n<a href=\"https:\/\/doi.org\/10.2807\/1560-7917.ES.2020.25.29.2001352\"><i><span data-contrast=\"none\">https:\/\/doi.org\/10.2807\/1560-7917.ES.2020.25.29.2001352<\/span><\/i><\/a><span data-ccp-props=\"{&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>An extensive outbreak investigation in a school (grades 7-12) in Jerusalem (Israel) found evidence of SARS-CoV-2 transmission within the school. After re-opening\u00a0on May 17 after a\u00a0two month\u00a0closure, the\u00a0first school outbreak occurred 10 days later. There was an indication that transmission was largely confined to certain grades, and to specific classrooms within those grades.\u00a0\u00a0 As part&#8230;<\/p>\n<div><a class=\"more\" href=\"https:\/\/depts.washington.edu\/pandemicalliance\/2020\/07\/24\/a-large-covid-19-outbreak-in-a-high-school-10-days-after-schools-reopening-israel-may-2020\/\">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":[21],"class_list":["post-8466","post","type-post","status-publish","format-standard","hentry","category-article-summary","topic-transmission"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/8466","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=8466"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/8466\/revisions"}],"predecessor-version":[{"id":8467,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/8466\/revisions\/8467"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/media?parent=8466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/categories?post=8466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/tags?post=8466"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/topic?post=8466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}