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KMID : 0368019900130010095
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Journal of Soonchunhyang University
1990 Volume.13 No. 1 p.95 ~ p.105
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Studies on the Distribution and Antibiotic Sensitivity to isolated Staphylococcus sp. From the Air of Hospital and its Neighborhood
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Abstract
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The study was performed to detect the route of hospital infection by isolating Staphylococcus from the air in the hospital and its neighborhood with the method of settling plate culture and -by testing their susceptibility to 7 drugs.
1. Among a total of 672 colonies collected from various areas, 422(62.8%) strains of staphylococcus were obtained.
2. Of 422 strains of Staphyolcoccus, 21(5.0%) strains were coagulase-positive and 401(95.0%) strains were coagulase negative. Among coagulasepositive strains, 11 strains were isolated from the hospital whereas 10 strains were isolated from the neighborhood. On. the other hand, Among coagulase negative strains, 349 strains were isolated from the hospital, whereas 52 strains were isolated from the neighborhood.
3. All the 21 coagulase positive strains isolated from the air in the hospital and its neighborhood showed positive reaction to mannitol, DNAase and β-hemolysis.
4. Most of coagulase positive strains were resist to penicillin but sensitive to sulfa-me thoxa zole-trimethoprim.
5. Among coagulase negative strains, 327(81.6%) strains were resist to penicillin, but, there was no. significant difference in the resistant rate to penicillin between the hospital and.its neighborhood.
6. The above result suggest that Staphylococcus is the major causative organism of hospital infection and.highly resistant to most of the antibiotics. These Staphylococci are. brought from the out side of the hospital by many visitors, that is the important route of hospital infection by staphylococcus.
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