Ann Clin Microbiol 2025;28(2):10. A multicenter study on antimicrobial resistance in bloodstream pathogens isolated in Korea: a survey study
| Organisms | No. of isolates | % of isolates | ||
|---|---|---|---|---|
| First isolate | Duplicate | First isolate | Duplicate | |
| Gram-positive bacteria | 72,972 | 58,830 | 27.2 | 33.7 |
| Staphylococcus aureus | 23,692 | 22,892 | 8.8 | 13.1 |
| Staphylococcus epidermidis | 19,339 | 21,974 | 7.2 | 12.6 |
| Enterococcus faecalis | 14,694 | 4,405 | 5.5 | 2.5 |
| Enterococcus faecium | 14,188 | 9,264 | 5.3 | 5.3 |
| Streptococcus pneumoniae | 1,059 | 295 | 0.4 | 0.2 |
| Gram-negative bacteria | 195,102 | 115,745 | 72.8 | 66.3 |
| Escherichia coli | 115,557 | 64,388 | 43.1 | 36.9 |
| Klebsiella pneumoniae | 56,471 | 40,398 | 21.1 | 23.1 |
| Pseudomonas aeruginosa | 16,895 | 3,301 | 6.3 | 1.9 |
| Acinetobacter baumannii | 6,179 | 7,658 | 2.3 | 4.4 |
| Total | 268,074 | 174,575 | 100.0 | 100.0 |