{"id":9838,"date":"2021-05-17T10:13:34","date_gmt":"2021-05-17T17:13:34","guid":{"rendered":"https:\/\/depts.washington.edu\/pandemicalliance\/?p=9838"},"modified":"2021-05-18T10:14:13","modified_gmt":"2021-05-18T17:14:13","slug":"interim-estimates-of-vaccine-effectiveness-of-pfizer-biontech-and-moderna-covid-19-vaccines-among-health-care-personnel-33-u-s-sites-january-march-2021","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/pandemicalliance\/2021\/05\/17\/interim-estimates-of-vaccine-effectiveness-of-pfizer-biontech-and-moderna-covid-19-vaccines-among-health-care-personnel-33-u-s-sites-january-march-2021\/","title":{"rendered":"Interim Estimates of Vaccine Effectiveness of Pfizer-BioNTech and Moderna COVID-19 Vaccines Among Health Care Personnel \u2014 33 U.S. Sites, January\u2013March 2021"},"content":{"rendered":"<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Among US healthcare personnel, one dose of either the Pfizer-BioNTech or Moderna vaccines was 82% effective against symptomatic COVID-19, and 2 doses were 94% effective. Interim results from a test-negative case-control study conducted in 25 states and e<\/span><span style=\"font-weight: 400\">nrolling 623 case-patients and 1,220 controls as of March 18, 2021<\/span><span style=\"font-weight: 400\"> indicate that vaccine effectiveness is similar to vaccine efficacy reported in clinical trials. <\/span><span style=\"font-weight: 400\">The effectiveness of a single dose was measured during the interval from 14 days after the first dose through 6 days after the second dose.<\/span><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400\">Pilishvili et al.\u00a0(May 14, 2021). Interim Estimates of Vaccine Effectiveness of Pfizer-BioNTech and Moderna COVID-19 Vaccines Among Health Care Personnel \u2014 33 U.S. Sites, January\u2013March 2021. MMWR. Morbidity and Mortality Weekly Report. <\/span><\/i><a href=\"https:\/\/doi.org\/10.15585\/mmwr.mm7020e2\"><span style=\"font-weight: 400\">https:\/\/doi.org\/10.15585\/mmwr.mm7020e2<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Among US healthcare personnel, one dose of either the Pfizer-BioNTech or Moderna vaccines was 82% effective against symptomatic COVID-19, and 2 doses were 94% effective. Interim results from a test-negative case-control study conducted in 25 states and enrolling 623 case-patients and 1,220 controls as of March 18, 2021 indicate that vaccine effectiveness is similar to&#8230;<\/p>\n<div><a class=\"more\" href=\"https:\/\/depts.washington.edu\/pandemicalliance\/2021\/05\/17\/interim-estimates-of-vaccine-effectiveness-of-pfizer-biontech-and-moderna-covid-19-vaccines-among-health-care-personnel-33-u-s-sites-january-march-2021\/\">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":[142],"topic":[31],"class_list":["post-9838","post","type-post","status-publish","format-standard","hentry","category-article-summary","tag-vaccine","topic-vaccines-and-immunity"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9838","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=9838"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9838\/revisions"}],"predecessor-version":[{"id":9839,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9838\/revisions\/9839"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/media?parent=9838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/categories?post=9838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/tags?post=9838"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/topic?post=9838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}