{"id":1393,"date":"2021-10-05T06:59:06","date_gmt":"2021-10-05T06:59:06","guid":{"rendered":"https:\/\/www.data-ia.fr\/?p=1393"},"modified":"2021-10-05T07:02:51","modified_gmt":"2021-10-05T07:02:51","slug":"billet-de-science-01","status":"publish","type":"post","link":"https:\/\/www.data-ia.fr\/index.php\/2021\/10\/05\/billet-de-science-01\/","title":{"rendered":"L&rsquo;ia et la pr\u00e9diction des virus"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"background-color: rgba(255,255,255,0);background-position: center center;background-repeat: no-repeat;border-width: 0px 0px 0px 0px;border-color:#eae9e9;border-style:solid;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start\" style=\"max-width:1216.8px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\" style=\"background-position:left top;background-repeat:no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover;padding: 0px 0px 0px 0px;\"><style type=\"text\/css\">@media only screen and (max-width:800px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:0px!important;margin-left:0px!important;}}@media only screen and (max-width:640px) {.fusion-title.fusion-title-1{margin-top:0px!important; margin-right:0px!important;margin-bottom:20px!important; margin-left:0px!important;}}<\/style><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;\"><h1 class=\"title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:58;line-height:0.83;\"><h2 style=\"text-align: center;\"><strong>LE BILLET DE SCIENCE<\/strong><\/h2><\/h1><\/div><div class=\"fusion-text fusion-text-1\"><p>Parmi\u00a0les virus qui circulent chez les animaux, quels sont ceux qui sont le plus susceptibles de s\u2019adapter \u00e0 l\u2019humain, et donc de provoquer de nouvelles \u00e9pid\u00e9mies ? Des chercheurs anglais publient une \u00e9tude tr\u00e8s prometteuse.<\/p>\n<p>Une \u00e9quipe a entra\u00een\u00e9\u00a0une intelligence artificielle \u00e0 comparer les g\u00e9nomes de centaines de virus. Surprise\u00a0: ce sont les virus de nos cousins les primates qui sont potentiellement les plus dangereux. Et non ceux qui touchent les chauve-souris et autres petits mammif\u00e8res\u2026 Des pr\u00e9cisions sur ces recherches avec Mathilde Fontez, r\u00e9dactrice en chef d\u2019<em>Epsiloon.<br \/>\n<\/em><br \/>\n<strong>Aujourd\u2019hui, vous nous parlez d\u2019une intelligence artificielle, un programme informatique, capable de pr\u00e9dire l\u2019\u00e9mergence de virus\u2026<\/strong><\/p>\n<p><strong>Mathilde Fontez :<\/strong> Oui. C\u2019est une \u00e9tude tr\u00e8s prometteuse : des chercheurs anglais sont parvenus \u00e0 entra\u00eener\u00a0une intelligence artificielle \u00e0 \u00e9valuer le risque qu\u2019un virus animal s\u2019adapte \u00e0 l\u2019organisme humain. Alors les intelligences artificielles, vous savez, ce sont ces programmes informatiques auxquels on fournit des donn\u00e9es et qui apprennent seuls, progressivement, \u00e0 reconna\u00eetre\u00a0des motifs.<\/p>\n<p>Cette \u00e9quipe a commenc\u00e9 par rassembler 758 g\u00e9nomes de virus qui infectent les animaux. Ce sont des virus qui ont \u00e9t\u00e9 collect\u00e9s dans l\u2019environnement et s\u00e9quenc\u00e9s par d\u2019autres \u00e9quipes. Pour 645 d\u2019entre eux, on ignorait totalement le caract\u00e8re infectieux chez l\u2019humain.<\/p>\n<p><strong>Et l\u2019intelligence artificielle a appris \u00e0 l\u2019\u00e9valuer ?<\/strong><\/p>\n<p>Elle a r\u00e9ussi oui. Les chercheurs ont valid\u00e9 cet apprentissage, tout simplement avec le SARS-cov-2, le virus responsable du Covid-19. L\u2019intelligence artificielle a bien conclut qu\u2019il avait une tr\u00e8s forte probabilit\u00e9 de s\u2019adapter \u00e0 l\u2019humain. Or on sait bien que c\u2019est ce qui s\u2019est pass\u00e9.<\/p>\n<p><strong>Et elle a d\u00e9tect\u00e9 d\u2019autres virus avec le m\u00eame niveau de risque\u00a0?<\/strong><\/p>\n<p>Oui\u00a0: l\u2019Alphacoronavirus 1 et le Sorex araneus coronavirus T14\u00a0: ce sont des coronavirus aussi donc, qui infectent les chats, les chiens, les cochons et les musaraignes. Et juste au moment o\u00f9 les chercheurs publiaient leurs conclusions, une \u00e9tude annon\u00e7ait d\u2019ailleurs qu&rsquo;un patient souffrant d&rsquo;une pneumonie \u00e9tait infect\u00e9 par un variant de cet Alphacoronavirus 1.<\/p>\n<p>L\u2019intelligence artificielle a aussi point\u00e9 un risque fort de transmission \u00e0 l\u2019humain pour un papillomavirus animal, un petit virus qui infectent g\u00e9n\u00e9ralement la peau et les organes sexuels. On conna\u00eet\u00a0d\u00e9j\u00e0 ce type de virus chez l\u2019humain\u00a0: ils sont responsables du cancer du col de l\u2019ut\u00e9rus. Tous les virus analys\u00e9s ont \u00e9t\u00e9 class\u00e9 par niveau de risque, de faible potentiel de transmission \u00e0 l\u2019humain, \u00e0 tr\u00e8s haut potentiel. Et cela permet de commencer \u00e0 d\u00e9gager des tendances g\u00e9n\u00e9rales qui pourraient orienter les strat\u00e9gies de surveillance de ces virus animaux.<\/p>\n<p>La principale conclusion pour l\u2019instant est une surprise\u00a0: l\u2019intelligence artificielle trouve que ce sont les virus des primates qui ont globalement plus de risques de s\u2019adapter \u00e0 l\u2019humain. Cela pourrait para\u00eetre\u00a0\u00e9vident, puisque notre organisme est proche de celui de ces animaux. Mais cela n\u2019avait jamais \u00e9t\u00e9 montr\u00e9. Les chercheurs pr\u00e9conisent donc de renforcer la surveillance des virus chez les primates, plut\u00f4t que de se focaliser sur les chauves-souris ou les oiseaux.<\/p>\n<p>Source : France Info<\/p>\n<\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-builder-column-0{width:100% !important;margin-top : 0px;margin-bottom : 20px;}.fusion-builder-column-0 > .fusion-column-wrapper {padding-top : 0px !important;padding-right : 0px !important;margin-right : 1.92%;padding-bottom : 0px !important;padding-left : 0px !important;margin-left : 1.92%;}@media only screen and (max-width:800px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}@media only screen and (max-width:640px) {.fusion-body .fusion-builder-column-0{width:100% !important;order : 0;}.fusion-builder-column-0 > .fusion-column-wrapper {margin-right : 1.92%;margin-left : 1.92%;}}<\/style><\/div><\/div><style type=\"text\/css\">.fusion-body .fusion-flex-container.fusion-builder-row-1{ padding-top : 0px;margin-top : 0px;padding-right : 0px;padding-bottom : 0px;margin-bottom : 0px;padding-left : 0px;}<\/style><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":1394,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"content-type":"","footnotes":""},"categories":[36],"tags":[],"class_list":["post-1393","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-i-a"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.6 - 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