intestinal helminths in different species of rodents in north khorasan province, northeast of iran

Background: rodents are an important source of zoonotic diseases for human. the aim of this study was to determine the infectivity of rodents with intestinal helminths in north khorasan province, iran. methods: one hundred and thirteen rodents were collected using different collection methods such as kill and live traps, digging of their burrow, filling of their hiding places with water and hand net during 2011-2013. their alimentary canals were removed in the laboratory and helminths were determined in the department of parasitology, tehran university of medical sciences. results: thirteen species of helminths parasites were found in 13 species of rodents, including aspiculuris tetraptera, hymenolepis diminuta, nippostrongylus brasiliensis, protospirura seurat, rictolaria ratti, skrjabinitaenia lobata, streptopharagus kuntzi, syphacia obvelata, taenia taeniaeformis, trichuris muris, cysticercus fasciolaris, acanthocephal. spp and trichuris spp. some of them were reported for the first time in new host in iran. s. obvelata and a. tetraptera were the most frequent parasites and p. seurat, r. ratti and c. fasciolaris were found only in one rodent. conclusion: this is the first study to investigate the intestinal parasites in rodents in this area. among different species identified, some of helminths were reported in new host.