High prevalence of cattle fascioliasis in coastal areas of Thua Thien Hue province, Vietnam

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  • NGUYEN Nga Thi
    Laboratory of Global Animal Resource Science, Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • LE Thinh Cong
    Department of Immunology and Vaccine, Institute of Biotechnology, Hue University, Phu Thuong Commune, Phu Vang district, Thua Thien Hue province, Vietnam
  • VO Minh Duc Co
    Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • VAN CAO Hoang
    Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • NGUYEN Ly Thi
    Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • HO Khanh Thi
    Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • NGUYEN Quyet Ngoc
    Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • TRAN Vui Quang
    Laboratory of Parasitology, Department of Parasitology and Infectious disease, Graduate School of Agricultural and Forestry, Hue University, 24 Phung Hung street, Hue city, Vietnam
  • MATSUMOTO Yasunobu
    Laboratory of Global Animal Resource Science, Department of Global Agricultural Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan

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<p>In Vietnam, especially central Vietnam, patients with fascioliasis are increasingly being reported. Since the fascioliasis is zoonotic, survey on the cattle fascioliasis should be informative for the control of human fascioliasis. In this study, the prevalence of cattle fascioliasis as well as the density of the intermediate host snails, Lymnaea swinhoei and L. viridis, were studied in Thua Thien Hue (TTH) province during 2014–2015. A total of 572 cattle feces were examined from 27 communes in 9 districts. Fasciola eggs were detected in cattle from 24 communes with an average prevalence of 23.4% (134/ 572). The highest prevalence was detected in cattle in the coastal plain terrain (31.0%) followed by plain (25.5%), mountain (21.7%), and low hilly (16.2%) terrains. The highest proportion of heavy infection (>200 EPG) was observed in the coastal plain terrain (36.1%), followed by mountains (20.0%), low hills (13.0%), and plains (8.9%). Low number of heavy infection, as well as relatively low prevalence in low hills and plains were associated with the extensive use of anti-fluke treatments. High number of intermediate host snails in low hilly and plain terrains also indicate high risk of fascioliasis. In this study, the density of Lymnaea snails in the coastal plain terrain was found to be very high (17.3 snails/m2) compared to that in previous studies. This is the first report indicating the recent expansion of cattle fascioliasis in the coastal region in Vietnam.</p>

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