{"id":563,"date":"2023-08-21T13:00:00","date_gmt":"2023-08-21T17:00:00","guid":{"rendered":"https:\/\/stillcoviding.ca\/en\/?p=563"},"modified":"2023-09-12T22:40:26","modified_gmt":"2023-09-13T02:40:26","slug":"some-seniors-infected-with-omicron-variants-were-more-susceptible-to-reinfection-not-less-mcmaster-study","status":"publish","type":"post","link":"https:\/\/stillcoviding.ca\/en\/news\/some-seniors-infected-with-omicron-variants-were-more-susceptible-to-reinfection-not-less-mcmaster-study\/","title":{"rendered":"Some seniors infected with Omicron variants were more susceptible to reinfection, not less: McMaster study"},"content":{"rendered":"<p>In a sign that scientists still don\u2019t fully understand how some COVID-19 variants manage to evade the immune system, a new Ontario study has found that retirement- and long-term-care home residents infected during the first Omicron wave were 20 times more likely to get reinfected by the virus than those who avoided a prior infection.<\/p>\n<p>The surprising finding by researchers at McMaster University runs counter to the prevailing wisdom that a previous COVID infection affords protection against future infections, at least in the older adults who participated in the study.<\/p>\n<div class=\"research-citation\">Early Omicron infection is associated with increased reinfection risk in older adults in long-term care and retirement facilities. Breznik, Jessica A. et al. <i>eClinicalMedicine,<\/i> 102148. DOI:&nbsp;<a target=\"_blank\" href=\"https:\/\/doi.org\/10.1016\/j.eclinm.2023.102148\" rel=\"noopener\">10.1016\/j.eclinm.2023.102148<\/a><br \/>\n<a target=\"_blank\" href=\"https:\/\/www.thelancet.com\/journals\/eclinm\/article\/PIIS2589-5370(23)00325-5\/fulltext\" rel=\"noopener\">https:\/\/www.thelancet.com\/journals\/eclinm\/article\/PIIS2589-5370(23)00325-5\/fulltext<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In a sign that scientists still don\u2019t fully understand how some COVID-19 variants manage to evade the immune system, a new Ontario study has found that retirement- and long-term-care home residents infected during the first Omicron wave were 20 times more likely to get reinfected by the virus than those who avoided a prior infection.<\/p>\n<p>The surprising finding by researchers at McMaster University runs counter to the prevailing wisdom that a previous COVID infection affords protection against future infections, at least in the older adults who participated in the study.<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/stillcoviding.ca\/en\/news\/some-seniors-infected-with-omicron-variants-were-more-susceptible-to-reinfection-not-less-mcmaster-study\/\">Continue reading<span class=\"screen-reader-text\">Some seniors infected with Omicron variants were more susceptible to reinfection, not less: McMaster study<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[60,61,200,18,203,201,199,55,41,8,14,186],"class_list":["post-563","post","type-post","status-publish","format-standard","hentry","category-news","tag-ba-1","tag-ba-2","tag-ba-5","tag-covid-19","tag-immune-system","tag-immunity","tag-mcmaster-university","tag-omicron","tag-reinfections","tag-research","tag-sars-cov-2","tag-seniors","entry"],"_links":{"self":[{"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/posts\/563","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/comments?post=563"}],"version-history":[{"count":6,"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/posts\/563\/revisions"}],"predecessor-version":[{"id":1394,"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/posts\/563\/revisions\/1394"}],"wp:attachment":[{"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/media?parent=563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/categories?post=563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stillcoviding.ca\/en\/wp-json\/wp\/v2\/tags?post=563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}