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KMID : 0359320170570020143
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Korean Journal of Veterinary Research
2017 Volume.57 No. 2 p.143 ~ p.146
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Porcine ear necrosis syndrome by coinfection of porcine reproductive and respiratory syndrome virus and Staphylococcus hyicus
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Lee Seung-Hee
Jung Ji-Youl
Kim Sung-Hee
Kim Jong-Wan
Park Jung-Won
Kang Dae-Young
Her Ji-Woong
Jeong Yea-Ji
So Byung-Jae
Yoon Soon-Seek
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Abstract
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Porcine ear necrosis syndrome is characterized by erosive and ulcerative lesions at the margin or tip of the pinna. Three growing pigs of different ages exhibited retarded growth accompanied by reddening and necrosis of ear prior to death. Gross examination showed reddening, swelling, black discoloration, scaling, and variable-sized yellowish materials and edema in ear cross section. Microscopically, thrombosis, abscess, ulceration, epidermal hyperplasia, and dermal pyogranulomatous inflammation with an intralesional bacterial colony were observed. Staphylococcus hyicus was isolated in all pigs’ ears and porcine reproductive and respiratory syndrome virus was detected by PCR and immunohistochemistry.
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KEYWORD
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Staphylococcus hyicus, ear, necrosis, porcine, porcine reproductive and respiratory syndrome
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