Analysis of the Prevalence and Species of Anisakis nematode in Sekisaba, Scomber japonicus Caught in Coastal Waters off Saganoseki, Oita in Japan

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  • Hidano Shinya
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Mizukami Kazuhiro
    Clinical Training Institute for Interns, Faculty of Medicine, Oita University, Japan Department of Gastroenterology, Faculty of Medicine, Oita University, Japan
  • Yahiro Takaaki
    Department of Microbiology, Faculty of Medicine, Oita University, Japan
  • Shirakami Kohei
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Ito Hideyuki
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Ozaka Sotaro
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan Department of Gastroenterology, Faculty of Medicine, Oita University, Japan
  • Ariki Shimpei
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan Department of Gastroenterology, Faculty of Medicine, Oita University, Japan
  • Saechue Benjawan
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Dewayani Astri
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Chalalai Thanyakorn
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Soga Yasuhiro
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Goto Mizuki
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Sonoda Akira
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan Department of Gastroenterology, Faculty of Medicine, Oita University, Japan
  • Ozaki Takashi
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Sachi Nozomi
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Kamiyama Naganori
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan
  • Nishizono Akira
    Department of Microbiology, Faculty of Medicine, Oita University, Japan
  • Murakami Kazunari
    Department of Gastroenterology, Faculty of Medicine, Oita University, Japan
  • Kobayashi Takashi
    Department of Infectious Disease Control, Faculty of Medicine, Oita University, Japan

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タイトル別名
  • Analysis of the Prevalence and Species of <i>Anisakis</i> nematode in Sekisaba, <i>Scomber japonicus</i> Caught in Coastal Waters off Saganoseki, Oita in Japan

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<p>Anisakidosis is developed by ingesting Anisakis in marine fish, including the chub mackerel, Scomber japonicus, without proper pre-treatment such as cooking or freezing. Two sibling species of Anisakis are found in S. japonicus from Japanese waters, and the prevalence and species of Anisakis in the fish depend on the sea area. For example, Anisakis simplex sensu stricto (s.s.) is found in the Pacific stock of S. japonicus, whereas A. pegreffii is found in the Tsushima Warm Current stock. S.japonicus caught in the Bungo Channel, off the coast of Saganoseki in Oita Prefecture, which is branded as Sekisaba, inhabits a very limited area; however, the infection states of Anisakis found in Sekisaba remain unclear. In this study, we compared the infection states of Anisakis in Sekisaba with those in S. japonicus caught in the South Oita area and Nagasaki Prefecture. All Anisakis from the Nagasaki Prefecture were A. pegreffii, while most of them found in Sekisaba and fish from the South Oita area were A. simplex s.s. Interestingly, the prevalence of Anisakis in Sekisaba was significantly lower than that in the other two areas. This may reflect the fact that Sekisaba might belong to a distinct stock of S. japonicus, varying from other stocks.</p>

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