Trematode Cercariae from Lymnaea gedrosiana in the Caspian Sea Littoral in Iran: a one health concern

Introduction Lymnaea gedrosiana snails are hosts to a variety of trematode cercaria public and veterinary health importance. In Guilan Province, Iran, region with high level fish bird farming wetlands important for migratory birds, little is known about the from L. . Methods From April 2020 October 2021, six freshwater sites in Province were sampled Lymnaeidae three times per season (spring, summer, autumn winter). Snails exposed light heat induce shedding shredded identified morphologically molecularly. Results total, 5,712 collected which 3,288 (57.6%) be 54.3% containing cercaria. Snail recovery highest spring summer. Trematode included Telorchis assula , Hypoderaeum conoideum Apharyngostrigea pipientis Sanguinicola cf. inermis Opisthioglyphe ranae Diplostomum pseudospathaceum Australapatemon burti Discussion The four trematodes D S. A. have not been previously reported Iran; all these can infect birds. most common found, H. (18.3% snails) zoonotic third (10.0% detrimental production. Given importance wildlife birds as well number farms area, efforts control needed protect human health. addition, monitoring programs should implemented identify prevent introductions new species.