{"id":9116,"date":"2021-04-13T09:50:18","date_gmt":"2021-04-13T16:50:18","guid":{"rendered":"https:\/\/depts.washington.edu\/pandemicalliance\/?p=9116"},"modified":"2021-04-14T09:51:07","modified_gmt":"2021-04-14T16:51:07","slug":"sars-cov-2-specific-antibodies-in-breast-milk-after-covid-19-vaccination-of-breastfeeding-women","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/pandemicalliance\/2021\/04\/13\/sars-cov-2-specific-antibodies-in-breast-milk-after-covid-19-vaccination-of-breastfeeding-women\/","title":{"rendered":"SARS-CoV-2\u2013Specific Antibodies in Breast Milk After COVID-19 Vaccination of Breastfeeding Women"},"content":{"rendered":"<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Vaccine-induced SARS-CoV-2-specific antibodies were found in a high proportion of breastmilk samples obtained up to 6 weeks post-vaccination from breastfeeding women in a cohort study in Israel (n=84,504 total samples). IgA antibody positivity peaked at 86% of samples at week 4 (1 week after second dose) and remained at 66% by week 6. IgG antibody levels remained low for the first 3 weeks but increased after week 4, with 97% of samples testing positive by weeks 5 and 6. No mother or infant experienced any serious adverse event during the study period. Consistent with other studies, more women reported a vaccine-related adverse event following the second dose compared to the first (62% vs 56%).<\/span><\/li>\n<\/ul>\n<p><i><span style=\"font-weight: 400\">Perl et al.\u00a0(Apr 12, 2021). SARS-CoV-2\u2013Specific Antibodies in Breast Milk After COVID-19 Vaccination of Breastfeeding Women. JAMA. <\/span><\/i><a href=\"https:\/\/doi.org\/10.1001\/jama.2021.5782\"><span style=\"font-weight: 400\">https:\/\/doi.org\/10.1001\/jama.2021.5782<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vaccine-induced SARS-CoV-2-specific antibodies were found in a high proportion of breastmilk samples obtained up to 6 weeks post-vaccination from breastfeeding women in a cohort study in Israel (n=84,504 total samples). IgA antibody positivity peaked at 86% of samples at week 4 (1 week after second dose) and remained at 66% by week 6. IgG antibody&#8230;<\/p>\n<div><a class=\"more\" href=\"https:\/\/depts.washington.edu\/pandemicalliance\/2021\/04\/13\/sars-cov-2-specific-antibodies-in-breast-milk-after-covid-19-vaccination-of-breastfeeding-women\/\">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":[67,215],"topic":[31],"class_list":["post-9116","post","type-post","status-publish","format-standard","hentry","category-article-summary","tag-antibodies","tag-infants","topic-vaccines-and-immunity"],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9116","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=9116"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9116\/revisions"}],"predecessor-version":[{"id":9117,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/posts\/9116\/revisions\/9117"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/media?parent=9116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/categories?post=9116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/tags?post=9116"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/depts.washington.edu\/pandemicalliance\/wp-json\/wp\/v2\/topic?post=9116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}