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KMID : 1101220030350020105
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2003 Volume.35 No. 2 p.105 ~ p.111
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Coagulase Serotyping and Antibiotic Susceptibility of Staphylococcus aureus Isolated from the Specimen of Elementary School Students
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Kim Tae-Un
Hwang Soo-Myung
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Abstract
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Staphylococcus aureus strains were isolated from the nasal specimens of 226 D Elementary School students in 2003. 96 strains(42.5%) were identified and tested for antibiotic susceptibility with Dade Behring Dried Positive Combo Panel Type 1A and the coagulase serotyping was investigated using microplate method. Eight serotypes were identified. 41.7% of the isolates belong to serotype IV, 19.8% to serotype V, 16.7% to serotype VII, 7.3% to serotype I, 6.3% to serotype II and 1.0% to serotype III, VI, and VIII. All the strains(100%) of 96 S. aureus were susceptible to ciprofloxacin, trimethoprim, vancomycin. 93 strains(96.9%) of 96 S. aureus were susceptible to clindamycin. 91 strains(94.8%) to amoxicillin, cephalothin, cefotaxime, imipenem, oxacillin, tetracycline, 84 strains(87.5%) to gentamicin, 54 strains to erythromycin, and 4 stains(4.2%) to penicillin. 5 strains (5.2%) of S. aureus were MRSA. All the strains(100%) of coagulase serotype IV S. aureus were susceptible to amoxicillin, clindamycin, cephalothin, cefotaxime, ciprofloxacin, gentamicin, imipenem, oxacillin, trimethoprim, tetracycline, vancomycin except for erythromycin(32.5%) and penicillin(2.5%). All the strains(100%) of coagulase serotype V S. aureus were susceptible to clindamycin, ciprofloxacin, trimethoprim, vancomycin, 18 strains(94.7%) to amoxicillin, cephalothin, cefotaxime, imipenem, and oxacillin, 17 strains(89.5%) to tetracycline, 16 strains(84.2%) to erythromycin, 14 strains(73.7%) to gentamicin, and no strains were susceptible to penicillin. All the strains(100%) of coagulase serotype VII S. aureus were susceptible to ciprofloxacin, trimethoprim, and vancomycin, 15(93.8%) to amoxicillin, clindamycin, cephalothin, cefotaxime, imipenem, and oxacillin, 14(87.5%) to tetracycline, 13(81.3%) to gentamicin, 11(68.8%) to erythromycin, and 2(12.5%) to penicillin.
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KEYWORD
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Coagulase serotype, Staphylococcus, MRSA, Antibiotic susceptibility
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