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Title: The role of domestic dogs in the transmission of zoonotic helminthes in a rural area of Mekong river basin
Authors: Marcello Otake Sato
Megumi Sato
Tippayarat Yoonuan
Tiengkham Pongvongsa
Surapol Sanguankiat
Sengchanh Kounnavong
Wanna Maipanich
Yuichi Chigusa
Kazuhiko Moji
Jitra Waikagul
Dokkyo Medical University
Niigata University
Mahidol University
Station of Malariology
Ministry of Health
Nagasaki University
Keywords: Immunology and Microbiology
Issue Date: 1-Jun-2017
Citation: Acta Parasitologica. Vol.62, No.2 (2017), 393-400
Abstract: © 2017 W. Stefański Institute of Parasitology, PAS. Dogs have been bred since ancient times for companionship, hunting, protection, shepherding and other human activities. Some canine helminth parasites can cause significant clinical diseases in humans as Opisthorchis viverrini causing cholangiocarcinoma in Southeast Asian Countries. In this study, socio-cultural questionnaire, canine parasitological analysis, necropsy, parasite molecular confirmation and dog roaming data were evaluated in Savannakhet, Lao-PDR, a typical Mekong Basin area. Dog owners comprised 48.8% of the studied population, with 61.2% owning one dog, 25.1% 2 dogs, 8.5% 3 dogs and 1.8% owning more than 4 dogs. Data from GPS logger attached to dogs showed they walked from 1.4 to 13.3 km per day, covering an area of 3356.38m2average, with a routine of accessing water sources. Thirteen zoonotic helminth species were observed. Causative agents of visceral and cutaneous larva migrans occurred in 44.1% and 70% of the samples respectively. Spirometra erinaceieuropaei was detected in 44.1% of samples. Importantly, O. viverrini was found in 8.8% of samples. Besides the known importance of dogs in the transmission of Ancylostoma spp., Toxocara spp. and S. erinaceieuropaei, the observed roaming pattern of dogs confirmed it as an important host perpetuating O. viverrini in endemic areas; their routine access to waterbodies may spread O. viverrini eggs in a favorable environment for the fluke development, facilitating the infection of fishes, and consequently infecting humans living in the same ecosystem. Therefore, parasitic NTDs control programs in humans should be done in parallel with parasite control in animals, especially dogs, in the Mekong River basin area.
ISSN: 12302821
Appears in Collections:Scopus 2016-2017

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