{"id":640,"date":"2026-03-12T17:26:19","date_gmt":"2026-03-12T16:26:19","guid":{"rendered":"https:\/\/biotechlerncenter.iph-multisite.berta-bewegt.ch\/?page_id=640"},"modified":"2026-03-13T17:06:07","modified_gmt":"2026-03-13T16:06:07","slug":"7-dou-viennent-les-resistances","status":"publish","type":"page","link":"https:\/\/biotechlerncenter.interpharma.ch\/fr\/sujets\/les-antibiotiques-sauvent-des-vies\/7-dou-viennent-les-resistances\/","title":{"rendered":"7. D\u2019o\u00f9 viennent les r\u00e9sistances?"},"content":{"rendered":"\n<p>Les bact\u00e9ries se reproduisent tr\u00e8s rapidement par division, certaines bact\u00e9ries se divisent toutes les 20 minutes. Lors de ces divisions cellulaires, il arrive fr\u00e9quemment que de petites erreurs se produisent, des modifications dans le patrimoine g\u00e9n\u00e9tique que l\u2019on appelle des mutations. Certaines mutations peuvent avoir pour effet qu\u2019une bact\u00e9rie soit tout \u00e0 coup r\u00e9sistante \u00e0 un antibiotique. Si cet antibiotique est utilis\u00e9, il va tuer toutes les bact\u00e9ries ne disposant pas de cette mutation. La bact\u00e9rie porteuse de la mutation va quant \u00e0 elle survivre et se multiplier \u00e0 son gr\u00e9. Tous ses descendants seront eux aussi prot\u00e9g\u00e9s de cet antibiotique car l\u2019information g\u00e9n\u00e9tique leur est transmise. En outre, les bact\u00e9ries sont capables de transmettre les r\u00e9sistances, non seulement \u00e0 leurs descendants directs, mais aussi \u00e0 leurs \u00abamis et connaissances\u00bb.<\/p>\n\n\n\n<p>Ces derni\u00e8res ann\u00e9es, le probl\u00e8me des r\u00e9sistances aux antibiotiques s\u2019est accentu\u00e9 car plus on emploie d\u2019antibiotiques, plus il y a de risques que des r\u00e9sistances apparaissent. L\u2019une des raisons de l\u2019apparition de plus en plus fr\u00e9quente de r\u00e9sistances est l\u2019emploi excessif d\u2019antibiotiques en m\u00e9decine. Les antibiotiques sont trop souvent prescrits \u00e0 la l\u00e9g\u00e8re, par exemple contre des maladies qu\u2019ils ne sont pas capables de combattre. Nous avons aussi une part de responsabilit\u00e9 dans l\u2019apparition des r\u00e9sistances lorsque nous ne prenons pas les antibiotiques correctement. En effet, il est important de toujours prendre toute la dose prescrite par le m\u00e9decin. Or, nombre de patients cessent pr\u00e9matur\u00e9ment de prendre les antibiotiques lorsqu\u2019ils se sentent mieux.&nbsp;<\/p>\n\n\n\n<p>Les antibiotiques ne sont pas seulement utilis\u00e9s en m\u00e9decine humaine, mais souvent aussi en m\u00e9decine v\u00e9t\u00e9rinaire: pour \u00e9viter que les cochons, les vaches et les poulets ne se contaminent mutuellement, on leur donne des antibiotiques dans les aliments et dans l\u2019eau. De ce fait, des germes r\u00e9sistants peuvent se d\u00e9velopper et \u00eatre transmis \u00e0 l\u2019\u00eatre humain par le biais de viande mal cuite ou par manque d\u2019hygi\u00e8ne dans la cuisine.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment enrayer la propagation des r\u00e9sistances aux antibiotiques?<\/h2>\n\n\n\n<p>Il faut utiliser les antibiotiques avec prudence et \u00e0 bon escient. Il est important de n\u2019utiliser des antibiotiques que si l\u2019on est effectivement en pr\u00e9sence d\u2019une infection bact\u00e9rienne. Les m\u00e9decins et les v\u00e9t\u00e9rinaires doivent doser les antibiotiques correctement et les patients et les agriculteurs doivent veiller \u00e0 bien respecter le traitement.<br>D\u2019autres mesures essentielles concernent l\u2019hygi\u00e8ne hospitali\u00e8re, par exemple que le personnel de l\u2019h\u00f4pital se lave r\u00e9guli\u00e8rement les mains et contr\u00f4le les infections (p. ex. d\u00e9pistage, isolement et traitement des malades). Cela permet de r\u00e9duire le risque de transmission des bact\u00e9ries r\u00e9sistantes entre les patients et le personnel de l\u2019h\u00f4pital.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/biotechlerncenter.interpharma.ch\/wp-content\/uploads\/sites\/4\/2020\/02\/unbenannt_1.png\" alt=\"\" class=\"wp-image-4550\"\/><figcaption>Comment les germes r\u00e9sistants se propagent<br>\u00a9 Daria S\u00fcssbier @Interpharma<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Les bact\u00e9ries se reproduisent tr\u00e8s rapidement par division, certaines bact\u00e9ries se divisent toutes les 20 minutes. Lors de ces divisions cellulaires, il arrive fr\u00e9quemment que de petites erreurs se produisent, des modifications dans le patrimoine g\u00e9n\u00e9tique que l\u2019on appelle des mutations. Certaines mutations peuvent avoir pour effet qu\u2019une bact\u00e9rie soit tout \u00e0 coup r\u00e9sistante \u00e0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1254,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"page-templates\/unterthema.php","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-640","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>7. D\u2019o\u00f9 viennent les r\u00e9sistances? - biotechlerncenter<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/biotechlerncenter.interpharma.ch\/themen\/lebensretter-antibiotika\/7-wie-entstehen-resistenzen\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"7. D\u2019o\u00f9 viennent les r\u00e9sistances?\" \/>\n<meta property=\"og:description\" content=\"Les bact\u00e9ries se reproduisent tr\u00e8s rapidement par division, certaines bact\u00e9ries se divisent toutes les 20 minutes. Lors de ces divisions cellulaires, il arrive fr\u00e9quemment que de petites erreurs se produisent, des modifications dans le patrimoine g\u00e9n\u00e9tique que l\u2019on appelle des mutations. 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