IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Ribicich, M.; Gamble, H.R.; Bolpe, J.; Scialfa, E.; Krivokapich, S.; Cardillo, N.; Betti, A.; Holzmann, M.L.C.; Pasqualetti, M.; Farina, F.; Rosa, A. | |
| _Trichinella_ infection in wild animals from endemic regions of Argentina | |
| 2010 Parasitology Research (107): 377-380 | |
Natural infection with _Trichinella_ has been described in more than 150 mammalian species. However, few reports of _Trichinella_ infection in wild animals have come from Argentina. In this study, muscle tissue was obtained from wild animals in Argentina with the aim of evaluating the presence of _Trichinella_. A total of 169 muscle samples were collected to determine the presence of _Trichinella_ larvae by artificial digestion. The 169 muscle samples originated from 12 species including 36 opossums (_Didelphis albiventris_), 19 armadillos (_Chaetophractus villosus_), 9 capybaras (_Hydrocaeris hydrocaeris_), 1 puma (_Puma concolor_), 3 grey fox (_Lycalopex gymnocercus_), 6 coypus (_Myocastor coypus_), 6 skunks (_Conepatus chinga_), 2 ferrets (_Galictis cuja_), 66 rats (_Rattus norvegicus_), 6 mice (_Mus musculus_), 12 wild boars (_Sus scrofa_), and 3 wild cats (_Felis geoffroyi_). _Trichinella_ infection was detected in 1 puma [2 larvae per gram (LPG)], 3 wild boars (8-420 LPG), 3 armadillos (0.04-0.08 LPG), and 9 rats (0.1 to 150 LPG). Only 3 Trichinella isolates, of 1 rat and 2 wild boars from Neuqu‚n, were identified as _Trichinella spiralis_ by nested PCR. The presence of _Trichinella_ infection among wild animal populations suggests a sylvatic cycle of transmission in Argentina, which can serve as a reservoir for humans and domestic animals. Further, evidence of high prevalence in rats emphasizes the need to improve pig management, mainly in small individual farms without adequate technology, to enhance the quality of feeds, and to improve veterinary services to avoid exposure of pigs to _Trichinella_. |
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