{"id":9585,"date":"2021-05-04T14:30:18","date_gmt":"2021-05-04T21:30:18","guid":{"rendered":"https:\/\/depts.washington.edu\/pandemicalliance\/?p=9585"},"modified":"2021-05-06T14:31:10","modified_gmt":"2021-05-06T21:31:10","slug":"sars-cov-2-antibody-positivity-protects-against-reinfection-for-at-least-seven-months-with-95-efficacy","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/pandemicalliance\/2021\/05\/04\/sars-cov-2-antibody-positivity-protects-against-reinfection-for-at-least-seven-months-with-95-efficacy\/","title":{"rendered":"SARS-CoV-2 antibody-positivity protects against reinfection for at least seven months with 95% efficacy"},"content":{"rendered":"<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Incidence of SARS-CoV-2 infection was 95% lower among persons with prior SARS-CoV-2 infection, indicated by seropositivity, in a cohort study in Qatar. In the study, 129 of 43,044 seropositive persons (0.3%) followed for a median of 16 weeks had at least one positive PCR test supported by evidence of reinfection at least 14 days after their first antibody-positive test, corresponding to an estimated incidence of reinfection of 0.66 cases per 10,000 person weeks. By contrast, 3,185 of 149,923 (2.1%) persons seronegative at baseline followed for a median of 17 weeks had at least one positive PCR, corresponding to 14 cases per 10,000 person-weeks.<\/span><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400\">Abu-Raddad et al.\u00a0(May 27, 2021). SARS-CoV-2 antibody-positivity protects against reinfection for at least seven months with 95% efficacy. EClinicalMedicine. <\/span><\/i><a href=\"https:\/\/doi.org\/10.1016\/j.eclinm.2021.100861\"><span style=\"font-weight: 400\">https:\/\/doi.org\/10.1016\/j.eclinm.2021.100861<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Incidence of SARS-CoV-2 infection was 95% lower among persons with prior SARS-CoV-2 infection, indicated by seropositivity, in a cohort study in Qatar. In the study, 129 of 43,044 seropositive persons (0.3%) followed for a median of 16 weeks had at least one positive PCR test supported by evidence of reinfection at least 14 days after&#8230;<\/p>\n<div><a class=\"more\" href=\"https:\/\/depts.washington.edu\/pandemicalliance\/2021\/05\/04\/sars-cov-2-antibody-positivity-protects-against-reinfection-for-at-least-seven-months-with-95-efficacy\/\">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":[67,32,221],"topic":[31],"class_list":["post-9585","post","type-post","status-publish","format-standard","hentry","category-article-summary","tag-antibodies","tag-immunity","tag-re-infection","topic-vaccines-and-immunity"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9585","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=9585"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9585\/revisions"}],"predecessor-version":[{"id":9586,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9585\/revisions\/9586"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/media?parent=9585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/categories?post=9585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/tags?post=9585"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/topic?post=9585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}