Entre 2024 et 2025, La R\u00e9union a connu une nouvelle circulation massive du virus chikungunya, pr\u00e8s de vingt ans apr\u00e8s l\u2019\u00e9pid\u00e9mie de 2005-2006. Cette r\u00e9surgence intervient dans un contexte de menace internationale qui concerne \u00e9galement la France hexagonale : en 2025, les nombreux cas import\u00e9s depuis La R\u00e9union ont contribu\u00e9 \u00e0 l\u2019apparition pr\u00e9coce de plusieurs foyers de transmission autochtone sur le territoire m\u00e9tropolitain. L\u2019exp\u00e9rience r\u00e9unionnaise pr\u00e9sente ainsi un int\u00e9r\u00eat d\u00e9passant le cadre local.<\/p>\n
Malgr\u00e9 une exp\u00e9rience importante des \u00e9pid\u00e9mies d\u2019arboviroses, une surveillance structur\u00e9e et des professionnels mobilis\u00e9s, cette nouvelle vague \u00e9pid\u00e9mique met en \u00e9vidence une difficult\u00e9 majeure de pr\u00e9paration aux crises sanitaires : la d\u00e9tection pr\u00e9coce d\u2019une menace ne garantit pas la capacit\u00e9 \u00e0 d\u00e9ployer suffisamment t\u00f4t les moyens n\u00e9cessaires pour en freiner l\u2019acc\u00e9l\u00e9ration.<\/p>\n
Le bilan communiqu\u00e9 fait \u00e9tat de plus de 54 000 cas biologiquement confirm\u00e9s, d\u2019environ 196 000 consultations pour chikungunya en m\u00e9decine de ville et de pr\u00e8s de 3 000 passages aux urgences. Ces chiffres sous-estiment toutefois le nombre r\u00e9el d\u2019infections, car en p\u00e9riode de forte circulation, toutes les personnes symptomatiques ne b\u00e9n\u00e9ficient pas d\u2019un test diagnostique. Une enqu\u00eate s\u00e9rologique r\u00e9alis\u00e9e apr\u00e8s l\u2019\u00e9pid\u00e9mie indique qu\u2019environ 46 % de la population auraient \u00e9t\u00e9 infect\u00e9es au cours de cette vague, apr\u00e8s prise en compte de l\u2019immunit\u00e9 r\u00e9siduelle acquise lors de l\u2019\u00e9pid\u00e9mie de 2005-2006.<\/p>\n
Selon le bilan de surveillance publi\u00e9 par Sant\u00e9 publique France en d\u00e9cembre 2025, 554 patients ont \u00e9t\u00e9 hospitalis\u00e9s plus de 24 heures et signal\u00e9s au dispositif, dont 138 formes s\u00e9v\u00e8res. Quarante-cinq d\u00e9c\u00e8s li\u00e9s au chikungunya ont \u00e9t\u00e9 recens\u00e9s, dont 22 directement imput\u00e9s \u00e0 l\u2019infection. Celle-ci peut d\u00e9stabiliser des pathologies pr\u00e9existantes, en particulier cardiovasculaires et m\u00e9taboliques. Chez les personnes diab\u00e9tiques, une alt\u00e9ration importante de l\u2019\u00e9quilibre glyc\u00e9mique a \u00e9t\u00e9 document\u00e9e. Par ailleurs, une grande \u00e9tude br\u00e9silienne cit\u00e9e met en \u00e9vidence une augmentation du risque de d\u00e9c\u00e8s jusqu\u2019\u00e0 trois mois apr\u00e8s le d\u00e9but des sympt\u00f4mes, avec un exc\u00e8s de mortalit\u00e9 attribu\u00e9 aux cardiopathies isch\u00e9miques et au diab\u00e8te, particuli\u00e8rement marqu\u00e9 dans les premi\u00e8res semaines.<\/p>\n
Le poids sanitaire du chikungunya d\u00e9passe la phase aigu\u00eb et les seules atteintes articulaires. Des douleurs parfois tr\u00e8s invalidantes peuvent s\u2019accompagner d\u2019une fatigue persistante, de troubles du sommeil et de limitations fonctionnelles durables, susceptibles d\u2019alt\u00e9rer de mani\u00e8re prolong\u00e9e la qualit\u00e9 de vie et, potentiellement, la capacit\u00e9 \u00e0 reprendre une activit\u00e9 professionnelle. Ces \u00e9l\u00e9ments soulignent l\u2019enjeu de suivi \u00e0 moyen et long terme des personnes atteintes et la n\u00e9cessit\u00e9 d\u2019int\u00e9grer les impacts prolong\u00e9s de cette infection dans l\u2019appr\u00e9ciation des cons\u00e9quences sanitaires, sociales et \u00e9ventuellement professionnelles des \u00e9pid\u00e9mies d\u2019arboviroses.\u00a0(contenu r\u00e9sum\u00e9 par l’IA)Lire la Suite<\/a>\u200b<\/p>","protected":false},"excerpt":{"rendered":" Entre 2024 et 2025, La R\u00e9union a connu une nouvelle circulation massive du virus chikungunya, pr\u00e8s de vingt ans apr\u00e8s l\u2019\u00e9pid\u00e9mie de 2005-2006. Cette r\u00e9surgence intervient dans un contexte de […]<\/p>\n","protected":false},"author":1,"featured_media":4499,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[227,118],"class_list":["post-21881","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sante-publique-prevention-epidemiologie","tag-ia","tag-vih-org"],"_links":{"self":[{"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=\/wp\/v2\/posts\/21881","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=21881"}],"version-history":[{"count":0,"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=\/wp\/v2\/posts\/21881\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=\/wp\/v2\/media\/4499"}],"wp:attachment":[{"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/veilles-affaires-sociales.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}