Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 8 3 2013 09 15 486 490 EN Gholamreza Mowlavi Dept. of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran AND Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran. Iraj Mobedi Dept. of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Hoda Abedkhojasteh Dept. of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Seyed Mahmoud Sadjjadi Dept. of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. Farideh Shahbazi Dept. of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Jafar Massoud Dept. of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. 2015 10 14   Rats are capable to harbor various pathogens, among which certain species of zo-onotic parasites are included. A long-term detection of parasite fauna of rats has sporadically been carried out in Iran. Abundance of these vertebrate pests is of great importance as regards public health issue. The present paper is focused on a digenean trematode Plagiorchis muris, obtained during a comprehensive study on rats over the decades in the country. Herein we describe this occurrence in a Rattus norvegicus in northern Tehran, with specific note on its morphological description. P. muris can infect human through consumption of infected marine food items, and has never been observed in Iran. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/465 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/465/502