Eslahi Aida Vafae, Aligolzadeh Armin, Pirestani Majid, Gharibi Zahra, Abdoli Amir, Hatam-Nahavandi Kareem, Bijani Behzad, Badri Milad, Ketzis Jennifer K
Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran.
Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Front Microbiol. 2023 Jul 14;14:1222599. doi: 10.3389/fmicb.2023.1222599. eCollection 2023.
snails are hosts to a variety of trematode cercaria of public and veterinary health importance. In Guilan Province, Iran, a region with a high level of fish and bird farming and wetlands important for migratory birds, little is known about the trematode cercaria from .
From April 2020 to October 2021, six freshwater sites in Guilan Province were sampled for Lymnaeidae snails three times per season (spring, summer, autumn and winter). Snails were exposed to light and heat to induce cercaria shedding and shredded cercaria were identified morphologically and molecularly.
In total, 5,712 Lymnaeidae snails were collected of which 3,288 (57.6%) were identified to be with 54.3% containing trematode cercaria. Snail and cercaria recovery were highest in the spring and summer. Trematode cercaria identified included , , , , , , and .
The four trematodes . , , , and have not been previously reported in Iran; all four of these can infect migratory birds. The most common cercaria found, (18.3% of the snails) is of zoonotic importance. The third most common cercaria found, (10.0% of the snails) is detrimental to fish production. Given the importance of the wetlands in the region for wildlife and migratory birds as well as the number of fish and bird farms in the area, efforts to control snails are needed to protect wildlife and human health. In addition, monitoring programs should be implemented to identify and prevent introductions of new trematode species.
蜗牛是多种对公共卫生和兽医健康具有重要意义的吸虫尾蚴的宿主。在伊朗的吉兰省，该地区鱼类和禽类养殖水平较高，且拥有对候鸟至关重要的湿地，但对于来自该地区的吸虫尾蚴却知之甚少。
2020年4月至2021年10月，对吉兰省的六个淡水区域进行采样，每个季节（春、夏、秋、冬）对椎实螺科蜗牛进行三次采样。将蜗牛暴露于光照和热量下以诱导尾蚴逸出，并对切碎的尾蚴进行形态学和分子鉴定。
共采集到5712只椎实螺科蜗牛，其中3288只（57.6%）被鉴定出来，54.3%的蜗牛体内含有吸虫尾蚴。蜗牛和尾蚴的回收率在春季和夏季最高。鉴定出的吸虫尾蚴包括[具体种类1]、[具体种类2]、[具体种类3]、[具体种类4]、[具体种类5]、[具体种类6]和[具体种类7]。
四种吸虫[具体种类1]、[具体种类2]、[具体种类3]和[具体种类4]此前在伊朗尚未有报道；这四种吸虫均可感染候鸟。发现的最常见尾蚴[具体种类8]（占蜗牛的18.3%）具有人畜共患病重要性。发现的第三常见尾蚴[具体种类9]（占蜗牛的10.0%）对鱼类生产有害。鉴于该地区湿地对野生动物和候鸟的重要性以及该地区鱼类和禽类养殖场的数量，需要努力控制椎实螺以保护野生动物和人类健康。此外，应实施监测计划以识别和防止新的吸虫种类传入。
