Oneo hundred and forty-five specimens of positive bacteriology, obtained from patients admitted to the Orthopedic Department of Seoul National University Hospital during the period from January, 1970 to March, 1973, were reviewed with respect to their causative microorganisms and antibiotic sensitivity. The results were also compared with reports previously published from the same department.
Following observations were made:
1. The identified microorganisms were of 9 species. Of these, the coagulase positive and negative
Staphylococcus continues to be the most frequent offender occupying 62.1 % of the total.
2. Of the Staphylococcus, the penicillin-resistant strains were proved in 84.6% of the series, a significant increase over the previous reports.
3. The Streptococcus, formerly the second-most frequent causative organism, occupied only 4.0% of the total suggesting a marked decrease in incidence over the last decade.
4. On the other hand, the Pseudomonas occupied 11.7 % of the total when mixed infections are included and together with other Gram-negative bacilli revealed a remarkable increase in incidence during the same period.
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