Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 4 3 2009 09 15 25 31 M Hami SR Naddaf I Mobedi M Zare-Bidaki SS Athari B Hajimohammadi G Anaraki-Mohammadi 2015 10 03 Background:  Linguatulosis is a rare zoonotic parasitic infection, in which human plays the role of both defini­tive and intermediate host and can be occasionally infected. This study determines the status of infection in live­stock and its po­tential risk to men in the northwestern province of Azarbaijan-e-Sharghi, Iran. Methods: In a cross-sectional study from June 2007 to June 2008, 800 slaughtered animals including 400 cattle and 400 buffaloes from Tabriz abattoir in Azarbaijan-e-Sharghi Province were randomly selected and examined for L. serrata nymphs. After primary macroscopical inspection, all liver and lung samples were cut to small pieces, treated with a tissue digestion method and checked macroscopically and micro­scopically for free or encapsulated nymphs. Results: Out of 800 animals, 3 (0.38%) were found to be infected with L. serrata nymphs and the preva­lence of infection in cattle and buffaloes was determined to be 0.25% and 0.5%, respectively. Conclusion: Linguatula infection occurs as an endemic zoonosis in the study area and has an active transmission life cycle. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/105 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/105/104