Distribution and prevalence of Taenia hydatigena, Taenia multiceps, and Mesocestoides spp. in Mongolian sheepdogs

Janjiv Temuujin; Gelegbalsan Ulziijargal; Chultemsuren Yeruult; Zagd Amarbayasgalan; Tangad Mungunzaya; Uudus Bayarsaikhan; Janjiv Khulan; Toni Wandra; Marcello Otake Sato; Choijilsuren Gantstetseg; Baldorj Ochirkhuyag; Megumi Sato; Hiroshi Yamasaki; Myadagsuren Narankhajid

doi:10.1016/j.vprsr.2021.100680

Distribution and prevalence of Taenia hydatigena, Taenia multiceps, and Mesocestoides spp. in Mongolian sheepdogs

Vet Parasitol Reg Stud Reports. 2022 Feb:28:100680. doi: 10.1016/j.vprsr.2021.100680. Epub 2021 Dec 16.

Authors

Affiliations

¹ Department of Biology, School of Sciences and Art - Biotechnology laboratory, National University of Mongolia, Ulaanbaatar, Mongolia.
² Department of Biology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia. Electronic address: ulziijargal@mnums.edu.mn.
³ Department of Pharmacology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia. Electronic address: yeruultch@mnums.edu.mn.
⁴ Department of Biology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia. Electronic address: amarbayasgalan@mnums.edu.mn.
⁵ Department of Biology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia. Electronic address: mungunzaya@mnums.edu.mn.
⁶ Department of Biology, School of Sciences and Art - Biotechnology laboratory, National University of Mongolia, Ulaanbaatar, Mongolia. Electronic address: bayaraa@num.edu.mn.
⁷ Department of Biology, School of Sciences and Art - Biotechnology laboratory, National University of Mongolia, Ulaanbaatar, Mongolia. Electronic address: khulan@num.edu.mn.
⁸ Directorate of Postgraduate, Sari Mutiara Indonesia University, Medan, Indonesia. Electronic address: tony_wdr2009@yahoo.com.
⁹ Department of Tropical Medicine and Parasitology, Dokkyo Medical University, Mibu, Tochigi, Japan. Electronic address: marcello@dokkyomed.ac.jp.
¹⁰ Graduate School of Health Sciences, Niigata University, Niigata, Japan. Electronic address: gantsetseg@nczd.gov.mn.
¹¹ Department of Biology, School of Sciences and Art - Biotechnology laboratory, National University of Mongolia, Ulaanbaatar, Mongolia. Electronic address: ochirkhuyag@num.edu.mn.
¹² Graduate School of Health Sciences, Niigata University, Niigata, Japan. Electronic address: satomeg@clg.niigata-u.ac.jp.
¹³ Department of Parasitology, National Institute of Infectious Diseases, Tokyo, Japan. Electronic address: hyamasak@niid.go.jp.
¹⁴ Department of Biology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia. Electronic address: narankhajid@mnums.edu.mn.

PMID: 35115119
DOI: 10.1016/j.vprsr.2021.100680

Abstract

Gastrointestinal parasite infections in livestock and companion animals in Mongolia have not been investigated sufficiently. This study aimed to determine the prevalence of cyclophyllid cestodes (Taeniidae and Mesocestoididae) in Mongolian sheepdogs using copro-DNA analysis. Sheepdog fecal samples (n = 1242) were collected from five ecological zones (mountain taiga, forest-steppe, steppe, desert-steppe, and desert) and four geographical regions (Western, Khangai, Central, and Eastern) within 20 of the country's 21 provinces. Among the 1242 samples, 201 (16.2%) tested positive for mitochondrial cytochrome c oxidase subunit 1 (cox1) and ribosomal 12S rRNA encoding genes of cyclophyllid cestodes. Prevalence in the mountain taiga, forest-steppe, steppe, desert-steppe, and desert zones was 29.2%, 15.4%, 15.1%, 20.1%, and 9.1%, respectively. Prevalence in the Western, Khangai, Central, and Eastern regions was 19.9%, 18.6%, 12.1%, and 12.8%, respectively. Taenia hydatigena, Taenia multiceps, and two Mesocestoides species (Mesocestoides sp.1 and Mesocestoides sp.2) were identified. T. hydatigena was found in the samples from all 20 provinces (all five zones and four regions), while T. multiceps was detected in the samples from 19 provinces (all five zones and four regions). Mesocestoides sp.1 infection was detected in the samples from all zones (except desert) and regions; it was detected in 14 provinces. Mesocestoides sp.2 infection was detected in the samples from all zones (except mountain taiga) and regions and found in seven provinces. Cyclophyllidea infection in sheepdogs is highly prevalent across Mongolia, representing a zoonotic risk. Implementation of a surveillance program for sheepdogs and their owners, and the wild animals in all ecological zones should be considered. In addition, control measures, including public awareness campaigns, especially for sheepdog owners, and periodic deworming of sheepdogs are warranted.

Keywords: Mesocestoides spp.; Molecular identification; Mongolia; Sheepdogs; Taenia hydatigena; Taenia multiceps.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Cestoda*
Cestode Infections* / epidemiology
Cestode Infections* / parasitology
Cestode Infections* / veterinary
Mesocestoides*
Prevalence
Taenia* / genetics