A case of bovine valvular endocarditis in which Helcococcus ovis is isolated

In a feedlot farm in Hiroshima Prefecture, a 15-month-old Holstein steer died of anemia. An autopsy revealed that a white verruca measuring 7 cm in diameter in the heart was attached to the tricuspid valve. Histopathologically, necrosis, hemorrhage, neutrophil aggregation, fibrinous effusion, and pr...

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Bibliographic Details
Published inNippon Juishikai zasshi Vol. 59; no. 5
Main Authors Morimoto, K.(Hiroshima-ken. Government Office (Japan)), Kubota, Y, Fujita, A, Kawamoto, C, Ibaraki, Y
Format Journal Article
LanguageJapanese
Published 01.05.2006
Subjects
ADN
BACTERIA
BOVIN
CATTLE
DNA
ENDOCARDITE
ENDOCARDITIS
GANADO BOVINO
JAPAN
JAPON
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Summary:In a feedlot farm in Hiroshima Prefecture, a 15-month-old Holstein steer died of anemia. An autopsy revealed that a white verruca measuring 7 cm in diameter in the heart was attached to the tricuspid valve. Histopathologically, necrosis, hemorrhage, neutrophil aggregation, fibrinous effusion, and proliferation of gram-positive coccus in the verruca were observed. Gram-positive coccus at 10(7) CFU/g was isolated from the verruca, as a pure culture. The isolated bacteria were identified as Helcococcus ovis based on the 16S rDNA sequence and biochemical features. On immunohistochemical staining using an antiserum prepared from the bacterial isolate as the antigen, positive reactions were observed diffusely in the verruca. This is the first case in Japan in which H. ovis was isolated from an ox with valvular endocarditis.
Bibliography:2007000696
L73
ISSN:0446-6454