한국인의 외이도 정상 세균총에 관한 연구
Microbiologic Study of the Ear Canal in Koreans
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Abstract
Background and Objectives：This study was designed to isolate bacteria and fungi from healthy ear canal in Koreans and compare with known pathogens. Subjects and Method：Specimens were collected from the external ear swab and cerumen of 45 healthy volunteers from February 2003 to May 2003. Results：Forty-five subjects were cultured. In 8 subjects, we failed to of which 84.7% were gram positive bacteria. Twenty-six cerumen specimens yielded 43 microorganisms and 76.7% of them were gram positive. Staphylococci was 76.4% of canal bacteria and 74.4% of cerumen bacteria. In both canal and cerumen, the most comonly isolated microorganism was Staphylococcus capitis. Coryneform bacteria were 6.9% of bacteria in canal and were not isolated from cerumen. Two Aspergillus species and one Penicillium Conclusion：Coagulase-negative staphylococcus (CNS) were found to be the predominant microorganism and, in particular, Staphylococcus capitis was the most commonly isolated microorganism from the normal external auditory canal in Koreans.
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