Tahas Stamatios A, Diakou Anastasia, Dressel Monika, Frei Samuel, Azevedo Fábia M Pinto, Casero María V Mena, Maia Carla, Grest Paula, Grimm Felix, Sitko Jiljí, Literák Ivan
1 Clinic for Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland.
2 Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Life Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
J Wildl Dis. 2017 Apr;53(2):344-348. doi: 10.7589/2016-03-068. Epub 2017 Jan 18.
We describe cases of collyriclosis in apodiform and passeriform birds in Portugal, Switzerland, and Germany. We extend the host range of Collyriculm faba to include apodiform birds ( Apus apus , Apus melba , and Apus pallidus ) and the passerine Sitta europaea (Eurasian Nuthatch). Infections varied in severity from an incidental finding to severe debilitation and death. The infection route remains unclear with the apparent absence from Germany, Portugal, and Switzerland of the first intermediate host of C. faba, the aquatic gastropod Bythinella austriaca, implying that other organisms might be involved in the parasite's life cycle. Furthermore, the detection of C. faba cysts in very young passerine birds may indicate an infection during the nestling stage and a rapid development of parasite-containing subcutaneous cysts. This series of cases highlights an increased geographic range into Portugal and the potential debilitating nature of a parasite of migratory birds in Europe. However, given the rarity of cases, collyriclosis does not seem to present an important threat to migratory species preservation.
我们描述了在葡萄牙、瑞士和德国的雨燕目及雀形目鸟类中发生的豆状带绦虫病病例。我们将豆状带绦虫的宿主范围扩大到雨燕目鸟类（普通楼燕、黑喉针尾雨燕和淡色针尾雨燕）以及雀形目的欧洲啄木鸟（欧亚坚果雀）。感染的严重程度各不相同，从偶然发现到严重衰弱和死亡。由于在德国、葡萄牙和瑞士明显没有豆状带绦虫的第一中间宿主——水生腹足类奥地利豆螺，感染途径仍不明确，这意味着可能有其他生物参与了该寄生虫的生命周期。此外，在非常年幼的雀形目鸟类中检测到豆状带绦虫囊肿，可能表明在雏鸟阶段发生了感染，并且含有寄生虫的皮下囊肿迅速发展。这一系列病例凸显了其地理分布范围扩大到了葡萄牙，以及欧洲一种候鸟寄生虫可能具有的致衰弱特性。然而，鉴于病例稀少，豆状带绦虫病似乎并未对迁徙物种的保护构成重大威胁。
