An Outbreak of Canine Babesiosis in Aomori Prefecture

  • ITOH NAOYUKI
    Department of Veterinary Internal Medicine, School of Veterinary Medicine and Animal Sciences, Kitasato University
  • HIGUCHI SEIICHI
    Department of Veterinary Internal Medicine, School of Veterinary Medicine and Animal Sciences, Kitasato University
  • OGASAWARA TOSHIMI
    Department of Veterinary Internal Medicine, School of Veterinary Medicine and Animal Sciences, Kitasato University
  • KAWAMURA SEIICHI
    Department of Veterinary Internal Medicine, School of Veterinary Medicine and Animal Sciences, Kitasato University

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Other Title
  • 青森県内で発生した犬のバベシア症
  • アオモリケンナイ デ ハッセイシタ イヌ ノ バベシアショウ

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Abstract

We encountered 19 cases of canine babesiosis which were not previously reported in Aomori prefecture. The main clinical signs were depression, decrease of appetite, excretion of brownish urine and pallor of the visible mucous membrane. A remarkable regenerative anemia was peculiar in blood examinations. On Giemsa stained blood smears, parasitism of small protozoa was confirmed in erythrocytes. The protozoa appeared to be Babesia gibsoni because of morphological characteristics. Urine analysis was done in 11 cases. A marked increase in bilirubin excretion was observed in all the 11 cases and hemoglobinuria in 7 cases. According to the above findings, the 11 cases were diagnosed as Babesia gibsoni infection. Almost all the cases recovered in about 10 days after fluid therapy and administration of diminazene aceturate.

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