Le site du minist\u00e8re de l’Agriculture et de la P\u00eache ainsi que celui de l’AFSSA donnent toutes les informations souhait\u00e9es sur la fi\u00e8vre catarrhale ovine (FCO), \u00e9galement appel\u00e9e maladie de la langue bleue (\u00ab\u00a0bluetongue\u00a0\u00bb, en anglais). Petit rappel \u00e0 la demande g\u00e9n\u00e9rale, notamment celle de Julie, jeune agricultrice du Jura. La FCO est une maladie virale. La transmission se fait presque exclusivement par l’interm\u00e9diaire de moucherons piqueurs du genre Culico\u00efdes.<\/p>\n
La transmission du virus se fait presque exclusivement par piq\u00fbre infectante d\u2019un petit dipt\u00e8re h\u00e9matophage appartenant \u00e0 la famille des Ceratopogonidae, genre Culicoides. Il existe plus de 1400 esp\u00e8ces de Culicoides (C.imicola est le principal vecteur). Seules certaines d\u2019entre elles sont capables de transmettre l\u2019infection. Le vecteur s\u2019infecte par repas de sang pris sur animal infectant. Puis, il multiplie le virus jusqu\u2019\u00e0 une dose n\u00e9cessaire pour sa transmission \u00e0 d\u2019autres animaux r\u00e9ceptifs.<\/p>\n
La transmission de l\u2019infection par des vecteurs infect\u00e9s, parfois sur de longues distances (100 km), a \u00e9t\u00e9 attrribu\u00e9e au vent.<\/p><\/blockquote>\n
Cette maladie est essentiellement situ\u00e9e dans les zones subtropicales du fait de la biologie de son vecteur. Elle a fait son apparition ces derni\u00e8res ann\u00e9es dans les pays du Sud de l’Europe (Gr\u00e8ce, Italie, Espagne mais \u00e9galement la Corse) et r\u00e9cemment dans le Nord de l’Europe (Allemagne, Belgique, Pays-Bas et France continentale).<\/p>\n
Les bovins sont habituellement r\u00e9sistants \u00e0 cette maladie<\/strong>
\nCette maladie ne touche que les ruminants et se manifeste chez les ovins principalement par diff\u00e9rents sympt\u00f4mes : fi\u00e8vre, boiteries, oed\u00e8mes, cyanose des muqueuses, amaigrissement pouvant conduire \u00e0 la mort des animaux ou \u00e0 une gu\u00e9rison lente avec d’importantes pertes \u00e9conomiques. L’\u00e9pizootie actuelle semble se distinguer par une atteinte non n\u00e9gligeable des bovins habituellement r\u00e9sistants \u00e0 la maladie. Les signes cliniques observ\u00e9s dans l’\u00e9pisode actuel sont les suivants : \u0153d\u00e8mes et ulc\u00e9rations buccales ou nasales, boiteries, \u0153d\u00e8me et \u00e9ryth\u00e8me des mamelles.<\/p>\nAucune incidence sur la qualit\u00e9 des denr\u00e9es<\/strong><\/p>\n
Cette maladie n’affecte pas l’homme et n’a strictement aucune incidence sur la qualit\u00e9 des denr\u00e9es. Elle est inscrite sur la liste de l’OIE qui comprend notamment les maladies qui ont \u00ab un grand pouvoir de diffusion, susceptibles de s’\u00e9tendre au-del\u00e0 des fronti\u00e8res nationales, dont les cons\u00e9quences socio-\u00e9conomiques ou sanitaires sont graves et dont l’incidence sur le commerce international des animaux et des produits d’origine animale est tr\u00e8s importante.\u00a0\u00bb Son apparition sur un territoire entra\u00eene donc des restrictions commerciales s\u00e9v\u00e8res qui concernent les animaux des esp\u00e8ces sensibles \u00e0 la maladie (ovins, bovins, caprins principalement) et leur semence, ovules et embryons.<\/p>\n","protected":false},"excerpt":{"rendered":"
Le site du minist\u00e8re de l’Agriculture et de la P\u00eache ainsi que celui de l’AFSSA donnent toutes les informations souhait\u00e9es sur la fi\u00e8vre catarrhale ovine (FCO), \u00e9galement appel\u00e9e maladie de la langue bleue (\u00ab\u00a0bluetongue\u00a0\u00bb, en anglais). Petit rappel \u00e0 la…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62],"tags":[],"class_list":["post-480","post","type-post","status-publish","format-standard","hentry","category-prophylaxie"],"yoast_head":"\n
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