Korean J Vet Res.
2017 Jun;57(2):143-146. 10.14405/kjvr.2017.57.2.143.
Porcine ear necrosis syndrome by coinfection of porcine reproductive and respiratory syndrome virus and Staphylococcus hyicus
- Affiliations
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- 1Animal Disease Diagnostic Research Division, Animal and Plant Quarantine Agency, Gimcheon 39662, South Korea. yoonss24@korea.kr
- KMID: 2386858
- DOI: http://doi.org/10.14405/kjvr.2017.57.2.143
Abstract
- 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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