RESUMO
We report and discuss the surprising encounter of a dog naturally infected by Dracunculus sp. in Brazil, a brief clinical history of the animal and a procedure for removing the nematode. We also present details on the morphology of the fragments collected from the nematode and a phylogenetic comparison of the partial sequences of the mitochondrial 18S rRNA and cytochrome c oxidase subunit I (COI) genes, deposited with others in GenBank. The samples were an independent lineage forming a well-supported monophyletic assemblage with D. medinensis. We thus conclude that this species has not yet been sequenced or even described and will only be elucidated by more information because only two species of Dracunculus have been reported in Brazil, D. fuelleborni and D. brasiliensis.
Assuntos
Doenças do Cão/parasitologia , Dracunculíase/veterinária , Dracunculus/genética , Animais , Brasil , Cães , Dracunculíase/parasitologia , Dracunculus/anatomia & histologia , Dracunculus/classificação , Genes de Helmintos , Genes de RNAr , Masculino , Filogenia , RNA de Helmintos/genética , RNA Mitocondrial/genética , RNA Ribossômico 18S/genéticaRESUMO
The pattern of infection with the nematode Parapharyngodon riojensis in the lizard Phymaturus extrilidus in a Puna area, central-west Argentina was studied. No significant prevalence differences were found between sexes or seasons sampled. However, there were differences in mean intensity between the summer (dry period) and autumn (wet period) seasons. Mean intensity was higher in the moistest season, associated with low body condition in P. extrilidus. The genus Parapharyngodon has a direct life cycle, and environmental moisture could favor higher intensity in the rainy period. The present study provides the first data on the parasitic ecology of P. extrilidus from Argentina.
Assuntos
Dracunculus/classificação , Lagartos/parasitologia , Infecções por Nematoides/veterinária , Animais , Argentina/epidemiologia , Feminino , Masculino , Infecções por Nematoides/epidemiologia , Infecções por Nematoides/parasitologia , Estações do AnoRESUMO
Se comunica el hallazgo de Dracunculus sp. en un canino proveniente de la localidade de Fontana, Departamento Patino, provincia de Formosa, Argentina. El hallazgo constituye el cuarto caso de Dracunculosis registrado en animales en una misma area geografica de Formosa.