6 research outputs found

    Nosemosis of honeybees: chronicle of a disappearance in France

    Get PDF
    La nosĂ©mose Ă  Nosema apis est une maladie de l’Abeille mellifĂšre classĂ©e danger sanitaire de catĂ©gorie 1. Les donnĂ©es Ă©pidĂ©miocliniques rĂ©centes indiquent une baisse marquĂ©e de son incidence au point que d’endĂ©mique la maladie pourrait aujourd’hui ĂȘtre requalifiĂ©e de sporadique. ParallĂšlement, de nouvelles techniques analytiques ont permis de montrer que l’agent causal cohabitait depuis peu avec une nouvelle espĂšce d’origine asiatique, Nosema ceranae . Ces deux espĂšces aux caractĂ©ristiques morphologiques et biologiques proches occupent une mĂȘme niche Ă©cologique : les entĂ©rocytes du ventricule des abeilles adultes. L’espĂšce Ă©mergente Nosema ceranae , dont l’infection est plutĂŽt asymptomatique, est aujourd’hui prĂ©dominante. La mondialisation des Ă©changes d’abeilles, les bou- leversements environnementaux peuvent ĂȘtre des facteurs essentiels Ă  l’implantation de nouveaux parasites. La disparition progressive de la nosĂ©mose en France est un exemple de la complexitĂ© des relations hĂŽtes-parasites ainsi que de notre incapacitĂ© Ă  prĂ©voir l’émergence d’organismes exotiques.Type-A nosemosis, caused by Nosema apis, is a disease of the Honeybee classified as a notifiable disease in France. Recent epidemioclinic data indicate a marked decrease in its incidence to the point that this endemic disease could now be requalified as sporadic. At the same time, new analytical tech- niques have shown that the causal agent has recently cohabited with a new species of Asian origin, Nosema ceranae. These two species, with close morphological and biological characteristics, cohabit the same ecological niche: the enterocytes of the ventricle of adult bees. The emerging Nosema cer- anae, whose infection is rather asymptomatic, is now becoming predominant. Globalization of bee trade, environmental changes, can be critical factors to the introduction of new pests. The progressive disappearance of nosemosis in France is an example of the complexity of host-parasite relationships as well as our inability to predict the emergence of exotic organisms

    Impact of the Erika oil spill on sea birds: review of post-Erika studies

    Get PDF
    Le Drean-Quenec’Hdu Sophie, L'Hostis Monique. Impact de la marĂ©e noire de l’Erika sur les oiseaux marins : bilan des diffĂ©rentes Ă©tudes post-Erika. In: Bulletin de l'AcadĂ©mie VĂ©tĂ©rinaire de France tome 158 n°3, 2005. pp. 313-317

    Babesia sp. EU1 from Roe Deer and Transmission within Ixodes ricinus

    Get PDF
    We report in vitro culture of zoonotic Babesia sp. EU1 from blood samples of roe deer in France. This study provides evidence of transovarial and transstadial transmission of the parasite within Ixodes ricinus, which suggests that this tick could be a vector and reservoir of EU1

    33 Supplément | 2021

    Full text link
    corecore