Angiostrongylus vasorum fertőzött ség okozta elhullás magyarországi kutyában Esetismertetés

Abstract

SUMMARY Background: In the last few decades, the Angiostrongylus vasorum infection seemed to spread from established hot-spots to previously non-infected areas within the red fox, and even within the domestic dog. In Hungary the presence of this cardiopulmonary parasite of canids is well known in the red fox and also in dog. Material and Methods: During the dissection of a 6 month-old puppy, originat ing from the Drava Plain, Angiostrongylus vasorum infection was detected at the Kaposvár Laboratory of Veterinary Diagnostic Directorate. Incurable, severe respira tory symptoms were described as anamnesis. At the laboratory, comprehensive post-mortem examination, histopathological investigation of macroscopic lesions, morphological analysis and molecular identification of intravasal parasites were carried out. Furthermore, the faecal sample derived from the rectum was analysed by modified McMaster faecal flotation method in order to determine the shed eggs of gastrointestinal helminths. Results and Discussion: During the necropsy, a considerable amount of A. vaso rum were observed in the right ventricle of the heart and in pulmonary arteries. The species identification of the helminths was verified by morphological and molecular diagnostic analysis. The histopathological examination revealed the presence of larvae in the tissue of the lungs, central nervous system and the myocardium. The analysis of faecal sample confirmed the presence of further nematodes (Ancylosto matidae, Trichuris spp., Capillaria spp.). The dog was born and lived in the southwest ern region of Hungary, thus the infection could be considered as autochthonous. This case draws attention to the possible presence of French heartworm that may be in the background of incurable respiratory symptoms of dogs in Hungary. More over, the results of this study support the previous hypothesis that this parasite became endemic in the southwestern region of Hungary.