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Updated: Feb 8, 2026

DNA-based Fish Species Identification Protocol
Published on: April 28, 2010
Toxocariasis in Carnivora from Argentinean Patagonia: Species molecular identification, hosts, and geographical
R M Vega1, C González Prous2, S Krivokapich2
1Laboratorio de Parasitología, INIBIOMA (CONICET-UNCo), Quintral 1250, 8400, Bariloche, Río Negro, Argentina.
Abstract:
Twenty four specimens of seven species belonging to the families Felidae, Mustelidae, and Canidae were obtained in Lanín and Nahuel Huapi National Parks from March 1996 to April 2016. Specimens were processed by necropsy in order to contribute to the knowledge of toxocariasis in wild carnivores of Argentinean Patagonia. The only Puma concolor and the seven Leopardus geoffroyi were positive for Toxocara cati. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) of the ITS-1 region from larval and adult DNA was carried out to confirm parasite species identification. This is the first molecular determination of T. cati from wild felids in Argentina and the study also fill gaps about the spatial distribution and hosts for Toxocara cati.
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