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Vet Res Forum. 2013 Spring;4(2):105-9.

A survey on helminthic infection in mice (Mus musculus) and rats (Rattus norvegicus and Rattus rattus) in Kermanshah, Iran.

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Department of Pathobiology, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran;
Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.


Parasitic infections of rodents can compromise scientific research as well as the health of the animals and humans. Based on previous studies, infection rate of parasitic helminths is different in various regions of Iran. The current survey was aimed to determine endoparasitic helminths infection in 138 trapped rodents of Kermanshah county, Iran. Mice and rats were trapped using metal snares from January to October 2011 and euthanized. Rodents included 110 Mus musculus (79.00%), 23 Rattus norvegicus (17.00%), and five Rattus rattus (4.00%). The gastrointestinal and respiratory tracts were removed and examined to identify parasitic helminths. The results indicated that 42.02% of examined rodents were infected with eight helminths species, i.e. Trichuris muris (14.49%), Syphacia obvelata (13.76%), Syphacia muris (2.89%), Aspicularis tetrapetra (5.07%), Heterakis spumosa (5.07%), Capillaria hepatica eggs (3.62%), Hyminolepis diminuta (12.30%), and Cystisercus fasciolaris, the larva of Taenia teanieformis (4.34%). Given the results of this study, we concluded that examined rodents were more infected with nematodes than other helminths. As rodents are usually infected with a number of zoonotic parasites, hence control of these animals has an important role in safeguarding public health.


Helminth; Iran; Kermanshah; Mice; Rats


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