{"id":38100,"date":"2024-04-30T18:51:27","date_gmt":"2024-04-30T18:51:27","guid":{"rendered":"https:\/\/www.africa-press.net\/gabon\/politique\/covid-long-un-nouveau-marqueur-biologique-identifie"},"modified":"2024-05-02T22:37:09","modified_gmt":"2024-05-02T22:37:09","slug":"covid-long-un-nouveau-marqueur-biologique-identifie","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie","title":{"rendered":"Covid long : un nouveau marqueur biologique identifi\u00e9 ?"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Gabon. <\/strong><\/span>L\u2019origine du Covid long a peut-e\u0302tre e\u0301te\u0301 en partie e\u0301lucide\u0301e par des chercheurs de l\u2019Universite\u0301 de Cambridge au Royaume-Uni. Chez les personnes qui, plus de six mois apre\u0300s avoir e\u0301te\u0301 infecte\u0301es par le virus du Covid-19, ressentent encore une forte fatigue avec parfois des proble\u0300mes de concentration et de me\u0301moire, une perte de l\u2019odorat ou du gou\u0302t, un souffle raccourci ou des maux de te\u0302te, les scientifiques ont trouve\u0301 un exce\u0300s de production dans le sang d\u2019un me\u0301diateur typique de l\u2019inflammation, l\u2019interfe\u0301ron gamma (IFNg). Ils ont publie\u0301 leurs travaux dans la revue Science Advances.<\/p>\n<p><b>Une pre\u0301sence re\u0301siduelle de virus ?<\/b><\/p>\n<p>Cette production excessive, qui provient d\u2019une petite fraction des lymphocytes T8 du syste\u0300me immunitaire, disparai\u0302t avec le syndrome post-Covid. Elle pourrait e\u0302tre lie\u0301e a\u0300 une pre\u0301sence re\u0301siduelle de virus qui a de\u0301ja\u0300 e\u0301te\u0301 de\u0301cele\u0301e chez des patients atteints de Covid long, une hypothe\u0300se renforce\u0301e par le fait que la vaccination contre le virus du Covid-19 re\u0301duit souvent les sympto\u0302mes.<\/p>\n<p><b>Des e\u0301tats ressemblant a\u0300 certains sympto\u0302mes du Covid long<\/b><\/p>\n<p>De plus, lorsqu\u2019il est utilise\u0301 comme me\u0301dicament, l\u2019IFNg peut induire des e\u0301tats ressemblant a\u0300 certains sympto\u0302mes du Covid long pre\u0301cisent les chercheurs. \u00ab\u00a0Cependant, savoir si cette anomalie est responsable des manifestations du Covid long reste a\u0300 de\u0301montrer\u00a0\u00bb, souligne Pierre Corbeau, immunologiste a\u0300 l\u2019Institut de ge\u0301ne\u0301tique humaine du CNRS a\u0300 Montpellier.<\/p>\n<p>D\u2019autres infections virales comme celles dues a\u0300 d\u2019autres coronavirus, aux virus de la dengue, d\u2019Epstein-Barr ou de la grippe peuvent aussi entrai\u0302ner la persistance de sympto\u0302mes comparables et ils pourraient aussi s\u2019expliquer par une libe\u0301ration excessive d\u2019IFNg dans le sang sugge\u0300rent les chercheurs.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <a href=\"https:\/\/www.africa-press.net\/gabon\">Gabon<\/a>, suivez <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Gabon. L\u2019origine du Covid long a peut-e\u0302tre e\u0301te\u0301 en partie e\u0301lucide\u0301e par des chercheurs de l\u2019Universite\u0301 de Cambridge au Royaume-Uni. Chez les personnes qui, plus de six mois apre\u0300s avoir e\u0301te\u0301 infecte\u0301es par le virus du Covid-19, ressentent encore une forte fatigue avec parfois des proble\u0300mes de concentration et de me\u0301moire, une perte [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":38099,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,50,49],"class_list":["post-38100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-gabon","tag-gabon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Covid long : un nouveau marqueur biologique identifi\u00e9 ? - Gabon<\/title>\n<meta name=\"description\" content=\"L\u2019origine du Covid long a peut-e\u0302tre e\u0301te\u0301 en partie e\u0301lucide\u0301e par des chercheurs de l\u2019Universite\u0301 de Cambridge au Roya ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Covid long : un nouveau marqueur biologique identifi\u00e9 ?\" \/>\n<meta property=\"og:description\" content=\"L\u2019origine du Covid long a peut-e\u0302tre e\u0301te\u0301 en partie e\u0301lucide\u0301e par des chercheurs de l\u2019Universite\u0301 de Cambridge au Roya ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie\" \/>\n<meta property=\"og:site_name\" content=\"Gabon\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-30T18:51:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-02T22:37:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/gabon\/sites\/54\/2024\/05\/sm_1714676725.081847.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"898\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/gabon\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Covid long : un nouveau marqueur biologique identifi\u00e9 ?\",\"datePublished\":\"2024-04-30T18:51:27+00:00\",\"dateModified\":\"2024-05-02T22:37:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie\"},\"wordCount\":340,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/gabon\/sites\/54\/2024\/05\/sm_1714676725.081847.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Gabon\",\"Gabon\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie\",\"url\":\"https:\/\/www.africa-press.net\/gabon\/toutes-les-actualites\/covid-long-un-nouveau-marqueur-biologique-identifie\",\"name\":\"Covid long : un nouveau marqueur biologique identifi\u00e9 ? 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