title: First detection of Allobilharzia visceralis (Schistosomatidae, Trematoda) from Cygnus cygnus in Japan.
abstract: Adult schistosomes were detected in the veins or capillaries of the large intestine, mesentery, liver, and adrenal glands in eight of 13 whooper swans (Cygnus cygnus) examined in Iwate Prefecture, Japan. However, neither eggs nor severe tissue injuries were observed in any of the swans. The schistosomes were definitively identified as Allobilharzia visceralis based on the nucleotide sequences of the ribosomal internal transcribed spacer (ITS) region. Allobilharzia visceralis infections have been reported in whooper swan in Iceland and tundra swan (Cygnus columbianus) in North America. These detections suggest that A. visceralis is distributed extensively along the swan flyways because the swans are migratory birds. To the best of our knowledge, this is the first report of A. visceralis infection in Asia.
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan; Department of Pathogenic Veterinary Science, United Graduate School of Veterinary Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
authors: Kei
authors: K
authors: Hayashi
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan. Electronic address: madoka@iwate-u.ac.jp.
authors: Madoka
authors: M
authors: Ichikawa-Seki
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan; Department of Pathogenic Veterinary Science, United Graduate School of Veterinary Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
authors: Yuma
authors: Y
authors: Ohari
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan; Department of Pathogenic Veterinary Science, United Graduate School of Veterinary Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
authors: Uday Kumar
authors: UK
authors: Mohanta
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan; Department of Pathogenic Veterinary Science, United Graduate School of Veterinary Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
authors: Junya
authors: J
authors: Aita
authors: Laboratory of Veterinary Pharmacology and Toxicology, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Hiroshi
authors: H
authors: Satoh
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Shiori
authors: S
authors: Ehara
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Minami
authors: M
authors: Tokashiki
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Tomoko
authors: T
authors: Shiroma
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Ayumi
authors: A
authors: Azuta
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Nozomi
authors: N
authors: Oka
authors: Laboratory of Veterinary Parasitology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Takuya
authors: T
authors: Watanabe
authors: Iwate Research Center for Wildlife Disease, 1-17-4 Nakano, Morioka, Iwate 020-0816, Japan.
authors: Ryo
authors: R
authors: Harasawa
authors: Iwate Wildlife Center, 390-29 Sunagome, Takizawa, Iwate 020-0605, Japan.
authors: Satoshi
authors: S
authors: Inohana
authors: Laboratory of Veterinary Pharmacology and Toxicology, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
authors: Toshihiro
authors: T
authors: Ichijo
authors: Laboratory of Veterinary Pharmacology and Toxicology, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan; Iwate Research Center for Wildlife Disease, 1-17-4 Nakano, Morioka, Iwate 020-0816, Japan.
authors: Kazuhisa
authors: K
authors: Furuhama
mesh_terms: D000311:Adrenal Glands / Q000469:parasitology / Q000473:pathology; D000818:Animals; D046090:Anseriformes / Q000469:parasitology*; D001715:Bird Diseases / Q000453:epidemiology / Q000469:parasitology*; D002196:Capillaries / Q000469:parasitology; D021903:DNA, Ribosomal Spacer; D004531:Eggs; D005260:Female; D007420:Intestine, Large / Q000469:parasitology / Q000473:pathology; D007564:Japan / Q000453:epidemiology; D008099:Liver / Q000469:parasitology / Q000473:pathology; D008297:Male; D010802:Phylogeny; D012551:Schistosomatidae / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D014201:Trematode Infections / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D014680:Veins / Q000469:parasitology
chemical_list: D021903:DNA, Ribosomal Spacer
keywords: Allobilharzia visceralis; Japan; Pathology; Phylogenetic analysis; Whooper swan