Black flies that suck blood from Japanese deer (Cervus nippon) and filarial infection in the flies

  • YAMASHITA Nobuo
    Department of Animal Husbandry, Tohoku National Agricultural Experiment Station
  • AOKI Chiharu
    Department of Infectious Disease Control, School of Medicine, Oita Medical University
  • TAKAOKA Hiroyuki
    Department of Infectious Disease Control, School of Medicine, Oita Medical University

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Other Title
  • ニホンジカから吸血するブユ相とフィラリア感染
  • Black flies that suck blood from Japanese deer(Cervus nipon)and filarial infection in the flies

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Abstract

In a study of whether black flies transmit pathogens from deer to livestock, black flies were collected with a light trap at a deer shed in Morioka, Iwate Prefecture, Japan, and examined for natural infection with filariae. A total of 970 black flies belonging to the following five species were captured : Simulium bidentatum, S. iwatense, S. aokii, S. nikkoense, and S. daisense. All but S. daisense sucked blood from deer. S. bidentatum, S. iwatense, and S. nikkoense had sucked blood from both cattle and deer. S. bidentatum was naturally infected with first-stage filarial larvae in the pectoral muscle. The black flies may carry pathogens between deer and cattle.

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