Related Experiment Video
Updated: Jun 17, 2026

A Strategy for the Study of IL-9-Producing Lymphoid Cells in the Nippostrongylus brasiliensis Infection Model
Published on: March 3, 2023
Identification of wild rodents as intermediate hosts for Hydatigera taeniaeformis in Peru
Luis A Gomez-Puerta1, Ana Vargas-Calla2, Madeline Garcia-Leandro3
1School of Veterinary Medicine, Department of Veterinary Epidemiology and Economics, Universidad Nacional Mayor de San Marcos, Av. Circunvalacion 2800, San Borja, Lima, 41, Peru. lgomezp@unmsm.edu.pe.
Abstract:
Hydatigera taeniaeformis is a cestode that uses felines and rodents as definitive and intermediate hosts, respectively. Its larval stage, or metacestode, infects a wide variety of rodent species and develops in the liver parenchyma into a cyst. The aim of this study was to evaluate the occurrence of H. taeniaeformis metacestode in various species of wild rodents from Peru. For this, the livers of 356 rodents were macroscopically examined for any parasitic form compatible with metacestodes. Metacestodes were identified by measuring characteristic morphological parameters, and the diagnosis was confirmed by molecular analysis of a fragment of the cytochrome c oxidase subunit 1 gene (cox1). Five rodents: two small-eared pygmy rice rats (Oligoryzomys microtis), two white-naped squirrels (Simosciurus nebouxii), and one pygmy rice rat (Oligoryzomys sp.) were infected with H. taeniaeformis metacestodes. The cox1 sequences from our metacestodes showed up to 100% identity with previous H. taeniaeformis sequences from the GenBank. These results demonstrated the occurrence of H. taeniaeformis in new intermediate hosts, as well as the first molecular contribution for H. taeniaeformis from Peru.
More Related Videos
Related Concept Videos
Symbiosis
Toxoplasmosis
American Trypanosomiasis
Giardiasis
Amebiasis
Anthelminthic Agents

