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KMID : 1023520100330030233
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Korean Journal of Veterinary Service
2010 Volume.33 No. 3 p.233 ~ p.240
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Identification and staphylococcal cassette chromosome mec (SCCmec) type of methicillin-resistant coagulase-negative staphylococci isolated from chickens
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Kong Shin-Koog
Yook Sim-Yong
Lee Geon-Taek
Kim So-Yeon
Hong Young-Un
Jung Yoon-Taek
Lee Jung-Hwa
Kim Hee-Jeong
Hwang Soo-Myung
Chang Kyung-Soo
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Abstract
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Methicillin-resistant coagulase-negative staphylococci (MRCNS) were isolated from the respiratory sites of chickens in 4 farms and slaughter house located in Chungnam provinces. Isolation of coagulase-negative staphylococci (CNS) was positive for 61 (26.6%) of the 229 chickens tested, and isolation of MRCNS was positive for 17 (27.9%) of the isolated CNS. A total of 17 MRCNS isolates were selected and subjected to identification. Of the 17 MRCNS isolates selected, 6 were identified as Staphylococcus cohnii, 2 as S. saprophyticus, 3 as S. simulans, 3 as S. lentus, 2 as S. carnosus, and 1 as S. xylosus. The MRCNS isolates were resistant to many beta-lactam antibiotics, and some isolates were also resistant to macrolide and aminoglycoside antibiotics. The mecA gene was detected in some isolates of each MRCNS strains. The mecA-positive isolates were classified into five staphylococcal cassette chromosome mec (SCCmec). SCCmec types I to IV were detected in isolates from chickens.
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KEYWORD
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Methicillin-resistant coagulase-negative staphylococci (MRCNS), Staphylo-coccal cassette chromosome mec (SCCmec) type, Chicken
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