{"id":19487,"date":"2026-02-27T18:42:23","date_gmt":"2026-02-27T17:42:23","guid":{"rendered":"https:\/\/francelyme.fr\/site\/ufaq\/64-quest-ce-quune-serologie\/"},"modified":"2026-02-28T19:24:37","modified_gmt":"2026-02-28T18:24:37","slug":"64-quest-ce-quune-serologie","status":"publish","type":"ufaq","link":"https:\/\/francelyme.fr\/site\/ufaq\/64-quest-ce-quune-serologie\/","title":{"rendered":"064. Qu&rsquo;est-ce qu&rsquo;une s\u00e9rologie ?"},"content":{"rendered":"<div class=\"like-button\" style=\"float: right; clear: both; text-align: right; width = 100%;\">\n<!-- Facebook Like Button Vivacity Infotech BEGIN -->\n<div class=\"fb-like\" data-href=\"https:\/\/francelyme.fr\/site\/ufaq\/64-quest-ce-quune-serologie\/\" data-layout=\"box_count\" data-action=\"like\" data-show-faces=\"false\" data-size=\"large\" data-width=\"450\" data-share=\"1\" ><\/div><\/div>\n<!-- Facebook Like Button Vivacity Infotech END -->\n<div id=\"fb-root\"><\/div>\n<style>.ewd-ufaq-faq-header-title a { font-family: Garamond !important; }<\/style><div  class=\"ewd-ufaq-faq-list ewd-ufaq-page-type-distinct ewd-ufaq-category-tabs-\" id='ewd-ufaq-faq-list'>\n\n\t<input type='hidden' name='show_on_load' value='' id='ewd-ufaq-show-on-load' \/>\n<input type='hidden' name='include_category' value='' id='ewd-ufaq-include-category' \/>\n<input type='hidden' name='exclude_category' value='' id='ewd-ufaq-exclude-category' \/>\n<input type='hidden' name='orderby' value='title' id='ewd-ufaq-orderby' \/>\n<input type='hidden' name='order' value='asc' id='ewd-ufaq-order' \/>\n<input type='hidden' name='post_count' value='-1' id='ewd-ufaq-post-count' \/>\n<input type='hidden' name='current_url' value='\/site\/wp-json\/wp\/v2\/ufaq\/19487' id='ewd-ufaq-current-url' \/>\n\t\n\t\n\t<div class='ewd-ufaq-faqs'>\n\n\t\t<div  class=\"ewd-ufaq-faq-div ewd-ufaq-faq-column-count-one ewd-ufaq-faq-responsive-columns- ewd-ufaq-faq-display-style-default ewd-ufaq-can-be-toggled\" id='ewd-ufaq-post-19487-N6a7joF8Vo' data-post_id='19487'>\n\n\t\t\n\t<div class='ewd-ufaq-faq-title ewd-ufaq-faq-toggle'>\n\t\n\t<a class='ewd-ufaq-post-margin'  href='#' role=\"button\">\n\n\t\t<div class='ewd-ufaq-post-margin-symbol ewd-ufaq-'>\n\t\t\t<span >A<\/span>\n\t\t<\/div>\n\n\t\t<div class='ewd-ufaq-faq-title-text'>\n\n\t\t\t<h4>\n\t\t\t\t064. Qu&rsquo;est-ce qu&rsquo;une s\u00e9rologie ?\t\t\t<\/h4>\n\n\t\t<\/div>\n\n\t\t<div class='ewd-ufaq-clear'><\/div>\n\n\t<\/a>\n\t\n<\/div>\n\t\n\t<div class='ewd-ufaq-faq-body' >\n\n\t\t\n\t\t\t<div class='ewd-ufaq-post-margin ewd-ufaq-faq-post'>\n\t<div class=\"like-button\" style=\"float: right;clear: both;text-align: right\">\n<!-- Facebook Like Button Vivacity Infotech BEGIN -->\n<div class=\"fb-like\" data-href=\"https:\/\/francelyme.fr\/site\/ufaq\/64-quest-ce-quune-serologie\/\" data-layout=\"box_count\" data-action=\"like\" data-show-faces=\"false\" data-size=\"large\" data-width=\"450\" data-share=\"1\"><\/div><\/div>\n<!-- Facebook Like Button Vivacity Infotech END -->\n<div id=\"fb-root\"><\/div>\n<div>\n<p class=\"RponseTexte1\">Une s\u00e9rologie est une analyse de sang qui recherche des anticorps fabriqu\u00e9s par l\u2019organisme en r\u00e9ponse \u00e0 une infection.<\/p>\n<\/div>\n<div>\n<p class=\"RponseTexte1\">Pour la maladie de Lyme, elle vise \u00e0 d\u00e9tecter des anticorps dirig\u00e9s contre des bact\u00e9ries du complexe <i>Borrelia<\/i> <i>burgdorferi<\/i>.<\/p>\n<\/div>\n<div>\n<p class=\"RponseTexte1\">Au d\u00e9but de l\u2019infection, la s\u00e9rologie peut \u00eatre faussement n\u00e9gative durant les premi\u00e8res semaines. Les anticorps peuvent mettre jusqu\u2019\u00e0 6 \u00e0 8 semaines pour \u00eatre d\u00e9tectables. Cela explique qu\u2019une prise de sang trop pr\u00e9coce ne peut exclure le diagnostic de maladie de Lyme (surtout si la clinique est \u00e9vocatrice). Il est alors n\u00e9cessaire de refaire une s\u00e9rologie quelques semaines plus tard. L\u2019exp\u00e9rience des patients indique aussi qu\u2019une proportion faible des malades ne sont pas en capacit\u00e9 de produire des anticorps, ce qui de facto conduit \u00e0 ne pas satisfaire le crit\u00e8re s\u00e9rologique.<\/p>\n<\/div>\n<div>\n<p class=\"RponseTexte1\">Une s\u00e9rologie positive indique un contact immunologique avec <i>Borrelia<\/i>, mais ne prouve pas \u00e0 elle seule qu\u2019il s\u2019agit d\u2019une infection en cours au moment du test, car des anticorps peuvent persister.<\/p>\n<\/div>\n<div class=\"like-button\" style=\"float: right;clear: both;text-align: right\">\n<!-- Facebook Like Button Vivacity Infotech BEGIN -->\n<div class=\"fb-like\" data-href=\"https:\/\/francelyme.fr\/site\/ufaq\/64-quest-ce-quune-serologie\/\" data-layout=\"box_count\" data-action=\"like\" data-show-faces=\"false\" data-size=\"large\" data-width=\"450\" data-share=\"1\"><\/div><\/div>\n<!-- Facebook Like Button Vivacity Infotech END -->\n<\/div>\n\t\t\n\t\t\t<div class='ewd-ufaq-author-date'>\n\n\tMis en ligne\n\t\n\tle\n<span class='ewd-ufaq-date'>\n\t27 f\u00e9vrier 2026<\/span>\n<\/div>\n\t\t\n\t\t\t\n\t\t\n\t\t\t\n\t\t\n\t\t\t<div class='ewd-ufaq-ratings'>\n\t\n\t<div class='ewd-ufaq-ratings-label'>\n\t\tCette information vous a-t-elle \u00e9t\u00e9 utile ?\t<\/div>\n\t\n\t<div class='ewd-ufaq-rating-button ewd-ufaq-up-vote ewd-ufaq-ratings-default-image' data-faq_id='19487'>\n\t\t<img decoding=\"async\" src=\"https:\/\/francelyme.fr\/site\/wp-content\/plugins\/ultimate-faqs\/assets\/img\/Thumbs-up-icon.png\" alt=\"Thumbs Up Icon\">\t\t<span>1<\/span>\n\t<\/div>\n\t\n\t<div class='ewd-ufaq-rating-button ewd-ufaq-down-vote ewd-ufaq-ratings-default-image' data-faq_id='19487'>\n\t\t<img decoding=\"async\" src=\"https:\/\/francelyme.fr\/site\/wp-content\/plugins\/ultimate-faqs\/assets\/img\/Thumbs-down-icon.png\" alt=\"Thumbs Down Icon\">\t\t<span>0<\/span>\n\t<\/div>\n<\/div>\n\n<div class='ewd-ufaq-clear'><\/div>\n\t\t\n\t\t\t\n\t\t\n\t\t\t\n\t\t\n\t\t\t\n\t\t\n\t\t\t\n\t\t\n\t\t\t\n\t\t\n\t<\/div>\n\n<\/div>\n\t<\/div>\n\n\t\n<\/div><div class=\"like-button\" style=\"float: right; clear: both; text-align: right; width = 100%;\">\n<!-- Facebook Like Button Vivacity Infotech BEGIN -->\n<div class=\"fb-like\" data-href=\"https:\/\/francelyme.fr\/site\/ufaq\/64-quest-ce-quune-serologie\/\" data-layout=\"box_count\" data-action=\"like\" data-show-faces=\"false\" data-size=\"large\" data-width=\"450\" data-share=\"1\" ><\/div><\/div>\n<!-- Facebook Like Button Vivacity Infotech END -->\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","ufaq-category":[337],"ufaq-tag":[],"class_list":["post-19487","ufaq","type-ufaq","status-publish","hentry","ufaq-category-diagnostic"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>064. 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