{"id":9611,"date":"2025-06-04T10:07:33","date_gmt":"2025-06-04T15:07:33","guid":{"rendered":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/?p=9611"},"modified":"2025-06-04T10:07:36","modified_gmt":"2025-06-04T15:07:36","slug":"study-live-bird-flu-virus-can-survive-in-raw-milk-for-a-week","status":"publish","type":"post","link":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/2025\/06\/04\/study-live-bird-flu-virus-can-survive-in-raw-milk-for-a-week\/","title":{"rendered":"Study: Live bird flu virus can survive in raw milk for a week"},"content":{"rendered":"<div class=\"panel body-content\"><div class=\"panel__container\">\n<p><a href=\"https:\/\/www.agdaily.com\/livestock\/study-live-bird-flu-virus-can-survive-in-raw-milk-for-week\/\">Ag Daily<\/a> A new lab study has found that the H5N1 avian influenza virus can remain infectious in raw milk for more than a day at room temperature and over a week when refrigerated, raising significant concerns about the potential for zoonotic transmission through unpasteurized dairy products.<\/p>\n\n\n\n<p>Published May 28 on the preprint server<em>&nbsp;<a href=\"https:\/\/www.medrxiv.org\/content\/10.1101\/2025.05.28.25328508v1\" target=\"_blank\" aria-label=\"medRxiv,, opens in a new window\" rel=\"noreferrer noopener\">medRxiv,<\/a><\/em>&nbsp;the non-peer-reviewed research was conducted by a team of UK scientists who studied the stability of H5N1 highly pathogenic avian influenza virus in raw cow and sheep milk. The study\u2019s findings come amid growing concern about the virus\u2019s spread in U.S. dairy herds since late 2023.<\/p>\n\n\n\n<p>\u201cHigh viral titres were detected in milk from infected cows, raising concerns about onwards human infections,\u201d the authors wrote. \u201cAlthough pasteurisation was shown to effectively inactivate influenza viruses in milk, unpasteurised milk still poses a risk of infection, both from occupational exposure in dairies and from the consumption of raw milk.\u201d<\/p>\n\n\n\n<p>Since its emergence in U.S. dairy cattle, H5N1 has been detected in more than a thousand cattle herds, various mammal species, dozens of dairy workers, and several individuals with no direct contact with infected animals.<\/p>\n\n\n\n<p>To model potential exposure scenarios, the researchers incubated the virus in pasteurized cow milk at room temperature and at 4\u00b0C (39.2\u00b0F), simulating both ambient dairy conditions and refrigerated storage. They also ran tests on sheep\u2019s milk using a lab strain of avian influenza.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.agdaily.com\/livestock\/study-live-bird-flu-virus-can-survive-in-raw-milk-for-week\/\">Continue reading<\/a><\/p>\n<a rel=\"nofollow\" href=\"\/secure-location.php\" style=\"display: none;\" title=\"ZeSJXJkBxRmCe m F\"><!-- ZeSJXJkBxRmCe m F --><\/a><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Ag Daily A new lab study has found that the H5N1 avian influenza virus can remain infectious in raw milk for more than a day at room temperature and over a week when refrigerated, raising significant concerns about the potential for zoonotic transmission through unpasteurized dairy products. Published May 28 on the preprint server&nbsp;medRxiv,&nbsp;the non-peer-reviewed [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[37],"tags":[],"class_list":["post-9611","post","type-post","status-publish","format-standard","hentry","category-avian-influenza"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/posts\/9611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/comments?post=9611"}],"version-history":[{"count":1,"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/posts\/9611\/revisions"}],"predecessor-version":[{"id":9612,"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/posts\/9611\/revisions\/9612"}],"wp:attachment":[{"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/media?parent=9611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/categories?post=9611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.unmc.edu\/healthsecurity\/transmission\/wp-json\/wp\/v2\/tags?post=9611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}