{"id":4010,"date":"2015-04-07T13:30:16","date_gmt":"2015-04-07T18:30:16","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=4010"},"modified":"2015-04-12T14:31:40","modified_gmt":"2015-04-12T19:31:40","slug":"allergies-move-from-patient-to-patient-through-blood-transfusions","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/allergies-move-from-patient-to-patient-through-blood-transfusions\/","title":{"rendered":"Allergies move from patient to patient through blood transfusions<img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_4012\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/04\/11725696795_5ac2053db1_z.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-4012\" class=\"wp-image-4012\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/04\/11725696795_5ac2053db1_z.jpg\" alt=\"A second patient, an 80-year-old woman with no history of peanut allergies, experienced anaphylaxis from eating peanuts several days after receiving frozen plasma. An investigation later determined the plasma donor had a history of  peanut anaphylaxis.\" width=\"500\" height=\"355\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/04\/11725696795_5ac2053db1_z.jpg 640w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/04\/11725696795_5ac2053db1_z-300x213.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><p id=\"caption-attachment-4012\" class=\"wp-caption-text\">A second patient, an 80-year-old woman with no history of peanut allergies, experienced anaphylaxis from eating peanuts several days after receiving frozen plasma. An investigation later determined the plasma donor had a history of peanut anaphylaxis. (Photo Credit: <a>Dean Hochman, flickr.com<\/a>)<\/p><\/div>\n<p>Anecdotal evidence has shown that allergies can sometimes be transferred between patients through blood and plasma transfusions.<\/p>\n<p>Researchers believe transfusions can temporarily cause food-based allergies in recipients, however they are so rare they do not believe that individuals with existing allergies should be excluded as donors.<\/p>\n<p>As a recent example, an eight-year-old boy in Toronto with no history of food-based allergies, was brought to the emergency department after experiencing anaphylaxis from eating salmon. The boy, who received blood transfusions over the course of a chemotherapy treatment for cancer, had eaten salmon several weeks before with no negative effects.<\/p>\n<p>Over the next several months the boy\u2019s \u00a0family slowly began introducing the foods the boy had become allergic to, without causing an anaphylactic reaction.<\/p>\n<p><span style=\"text-decoration: underline;\"><a href=\"http:\/\/www.cmaj.ca\/lookup\/doi\/10.1503\/cmaj.141407\" target=\"_blank\">Original research paper<\/a><\/span>\u00a0published in <em>CMAJ\u00a0<\/em>on\u00a0<strong>April\u00a07<\/strong><span class=\"aBn\" tabindex=\"0\" data-term=\"goog_453723367\"><span class=\"aQJ\"><strong>, 2015<\/strong>.<\/span><\/span><\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Names and affiliations of selected\u00a0authors<\/strong><\/em><\/span><\/p>\n<h4>Doctor Joyce Cheung Yee Ching, University of Toronto, Hospital for\u00a0Sick Children, Ontario<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Anecdotal evidence has shown that allergies can sometimes be transferred between patients through blood and plasma transfusions. Researchers believe transfusions can temporarily cause food-based allergies in recipients, however they are so rare they do not believe that individuals with existing allergies should be excluded as donors. As a recent example, an eight-year-old boy in Toronto [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4012,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[25],"tags":[2408,2015,51,53,50,476],"class_list":["post-4010","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest","tag-allergies","tag-blood","tag-health","tag-medicine","tag-ontario","tag-public-health"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2015\/04\/11725696795_5ac2053db1_z.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-12G","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/4010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=4010"}],"version-history":[{"count":2,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/4010\/revisions"}],"predecessor-version":[{"id":4014,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/4010\/revisions\/4014"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/4012"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=4010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=4010"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=4010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}