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KMID : 0359320220620010009
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Korean Journal of Veterinary Research
2022 Volume.62 No. 1 p.9 ~ p.9
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Fatal pneumonia caused by extraintestinal pathogenic Escherichia coli in a young dog
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Kim Gyeong-Yeob
Kim Jong-Ho
Lee Hyun-Kyoung
Kim Ha-Young
Moon Bo-Youn
Lee Yu-Ran
Park Jung-Won
So Byung-Jae
Bae You-Chan
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Abstract
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This paper describes a fatal case of pneumonia in a 14-day-old dog caused by extraintestinal pathogenic Escherichia coli (ExPEC). The necropsy showed that almost all of left lobes of the lungs had dark-red consolidation. A histopathology examination revealed moderate acute fibrino-hemorrhagic necrotizing pneumonia with intralesional bacterial colonies. Non-suppurative epicarditis, congestion in the liver, and necrosis in the white pulp of the spleen also were found. E. coli with cytotoxic necrotizing factor 1 and α-hemolysin was isolated from the lung. This case was confirmed to have fatal pneumonia caused by ExPEC that led to a systemic infection.
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KEYWORD
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Escherichia coli, extraintestinal pathogenic Escherichia coli, hemorrhagic necrotizing pneumonia
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