Epidemiological survey of canine bartonellosis to Bartonella vinsonii subs. berkholfii and canine monocytic ehrlichiosis in dogs on the island of Reunion

La Reunion est un departement francais d'Outre-Mer, situe dans l'ocean Indien au climat tropical favorable au developpement de maladies transmises par arthropodes vecteurs. L'ehrlichiose et la bartonellose canines y ont ete etudiees par serologie (immunofluorescence indirecte) et culture bacterienne (dans le cas des bartonelles). La bartonellose canine due a Bartonella vinsonii berkhoffii est une infection emergente. Une population de chiens errants d'une part et une population de chiens medicalises d'autre part y ont ete suivis. La Reunion se revele etre une zone d'enzootie de l'ehrlichiose canine, avec une prevalence totale d'environ 31 %, avec une difference significative entre les chiens medicalises (prevalence inferieure a 3%) et les chiens errants (prevalence de 75%). Concernant la bartonellose canine, la seroprevalence avoisine 10% et la difference entre les populations canines est retrouvee. 5% des chiens sont co-infectes, ce qui est en faveur d'un vecteur commun.

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