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Taeniasis in Mongolia, 2002–2006

Survey on secondary data of taeniasis/cysticercosis was carried out in Mongolia in 2002–2006. A total of 118 taeniid proglottids, a diphyllobothriid segment, and 59 serum samples from 118 taeniasis cases were collected at National Center for Communicable Diseases, Ulaanbaatar, Mongolia. In 2006, 14 serum samples were collected from local people who had histories of epileptic seizures in Selenge Province where pig husbandry was the main business. The 118 proglottids were confirmed to be Taenia saginata by mitochondrial DNA analysis using cytochrome c oxidase subunit 1 and cytochrome b genes. T. saginata taeniasis was widely distributed at least in 10 of 21 provinces. No variation in the nucleotide sequences of the two genes was observed among T. saginata isolates from Mongolia. There was no evidence of Taenia solium taeniasis/cysticercosis or Taenia asiatica taeniasis. A diphyllobothriid segment was confirmed to be Diphyllobothrium latum by mitochondrial DNA analysis.

Received January 23, 2007. Accepted for publication May 6, 2007.

Acknowledgments: We are grateful to staffs of Laboratory of Parasitology, National Center for Communicable Diseases, Ulaanbaatar, Mongolia, State Central Veterinary Laboratory, Department of Animal Infectious Diseases, Ulaanbaatar, Mongolia, and Laboratory of Parasitology, Research Center of Selenge Province, especially to Luvsan Sugar for cooperation and assistance during the survey.

Financial support: This work was supported by Japan Society for the Promotion of Science (JSPS) (14256001 and 17256002) and JSPS-Asia/Africa Science Platform Fund to AI.

^* Address correspondence to Akira Ito, Department of Parasitology, Asahikawa Medical College, Midorigaoka Higashi 2-1-1-1, Asahikawa 078-8510, Hokkaido, Japan. E-mail: akiraito{at}asahikawa-med.ac.jp

Authors’ addresses: Narankhajid Myadagsuren and Purevdorj Ichinkhorloo, Department of Medical Biology, School of Biomedicine, Health Sciences University, Choidogiin Str-3 PO 48 Box 111, Ulaanbaatar, Mongolia, Telephone: 976-11-320598, Fax: 976-11-321249, E-mails: narankhajid{at}yahoo.com and purevdorj{at}hsum.edu.mn. Abmed Davaajav and Tsogtsaikhan Sandar, Laboratory of Parasitology, National Center for Communicable Diseases, Ulaanbaatar, Mongolia, Choidogiin Str-3 PO 48 Box 111, Telephone: 976-99-778211, Fax: 976-11-321249, E-mails: abmedd{at}yahoo.co.uk and tsogt_san{at}yahoo.com. Toni Wandra, Directorate General Disease Control and Environmental Health, Ministry of Health, Indonesia, Jakarta, Indonesia, Telephone: 62-21-4247608, Fax: 62-21-4207807, E-mail: twandra{at}yahoo.com. Hiroshi Yamasaki, Yasuhito Sako, Minoru Nakao, Marcello O. Sato, and Akira Ito, Department of Parasitology, Asahikawa Medical College, Asahikawa 078-8510, Japan, Telephone: 81-166-68-2420, Fax: 81-166-68-2429, E-mails: hyamasak{at}asahikawa-med.ac.jp, yasusako{at}asahikawa-med.ac.jp, nakao{at}asahikawa-med.ac.jp, marcello{at}asahikawa-med.ac.jp, and akiraito{at}asahikawa-med.ac.jp. Kazuhiro Nakaya, Animal Laboratory for Medical Research, Asahikawa Medical College, Asahikawa 078-8510, Japan, Telephone: 81-166-68-2683, E-mail: nky48{at}asahikawa-med.ac.jp.

Reprints requests: Akira Ito, Department of Parasitology, Asahikawa Medical College, Midorigaoka Higashi 2-1-1-1, Asahikawa 078-8510, Hokkaido, Japan. E-mail: akiraito{at}asahikawa-med.ac.jp.