Biology of Nematodes and Acanthocephalans

Baker, David G.

doi:10.1002/9780470344552.ch5

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“…Only the observation of the eggs in the feces is not sufficient to identify the species and the genus, since the majority of the eggs of the phylum Acanthocephala, phylum which belongs the P. elegans, are morphologically indistinguishable (Machado Filho 1950, Baker 2008. Therefore, parasitological examination of feces is a poorly accurate technique in the diagnosis of this parasite (Falla et al 2015), which makes post-mortem diagnosis, through necropsies, an important tool for collecting data on the epidemiology of this infection.…”

Section: Discussionmentioning

confidence: 99%

Pathological and parasitological characterization of Prosthenorchis elegans in a free-ranging marmoset Callithrix geofroyi from the Brazilian Atlantic Forest

et al. 2017

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Prosthenorchis elegans is an acanthocephalan intestinal parasite reported in neotropical primates. Despite parasitism by P. elegans having already been described in wild marmosets in the Brazilian Atlantic Forest, there are no reports of this infection in wild Geoffroy’s marmoset (Callithrix geofroyi). The aim of this study is to report one case of P. elegans parasitism in a free-ranging C. geoffroyi from Brazilian Atlantic Forest in Espírito Santo state, and characterize the pathological and parasitological findings of this infection. One Geoffroy’s marmoset necropsied at the Vila Velha University’s Veterinary Pathology Laboratory presented intense chronic transmural ulcerative enteritis associated with twenty cylindrical helminths present in the jejunum and ileum. We can conclude that parasitism by P. elegans occurs in free-ranging groups of Geoffroy’s marmosets. Its infection produced severe intestinal lesions even in free-ranging marmoset and therefore is a threat to this animal’s survival in wildlife and can have some impact on primate conservation in the Brazilian Atlantic Forest.

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Section: Discussionmentioning

confidence: 99%