Volume 13, Number 3—March 2007
Dispatch
Staphylococcal Cassette Chromosome mec in MRSA, Taiwan
Jann-Tay Wang*, Chi-Tai Fang*, Yee-Chun Chen*, Chia-Ling Wu*, Mei-Ling Chen*, and Shan-Chwen Chang*
Table 2
Characteristics of 190 methicillin-resistant Staphylococcus aureus isolates, Taiwan, 1992–2003*
| P (no. isolates) | SCC mec type | MLST | PVL | Year of isolation (no. isolates) | Drug susceptibility rate, %† | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OX | EM | CL | GM | AM | CP | LV | TC | TS | RF | VA | ||||||
| A (34) | IV | 254 | N | 1992 (11), 1993 (13), 1994 (5), 1995 (1), 1996 (3), 2003 (1) | 0 | 0 | 8.8 | 0 | 0 | 20.1 | 32.3 | 5.9 | 91.2 | 0 | 100 | |
| B (49) | III | 241 | N | 1992 (8), 1993 (11), 1994 (10), 1995 (17), 1996 (3) | 0 | 0 | 40.8 | 0 | 0 | 4.1 | 4.1 | 0 | 2.0 | 18.4 | 100 | |
| C (69) | III | 239 | N | 1994 (1), 1995 (14), 1996 (34), 2003 (20) | 0 | 0 | 5.8 | 2.9 | 0 | 1.4 | 1.4 | 2.9 | 1.4 | 95.7 | 100 | |
| D (6) | IV | 59 | Y | 1994 (1), 1995 (2), 1996 (1), 2003 (2) | 0 | 0 | 0 | 16.7 | 33.3 | 66.7 | 100 | 33.3 | 100 | 100 | 100 | |
| E (2) | IV | 254 | N | 1992 (1), 1995 (1) | 0 | 0 | 50 | 0 | 0 | 50 | 50 | 0 | 100 | 0 | 100 | |
| F (3) | IV | 30 | Y | 1992 (2), 1993 (1) | 0 | 0 | 0 | 33.3 | 66.7 | 100 | 100 | 33.3 | 100 | 100 | 100 | |
| K (11) | III | 239 | N | 2003 (11) | 0 | 0 | 9.1 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 100 | |
| L (5) | III | 239 | N | 2003 (5) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 100 | |
| M (8) | II | 5 | N | 2003 (8) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 100 | 25 | 100 | |
| Other‡ (3) | ||||||||||||||||
| I | 5 | N | 2003 (1) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 100 | 0 | 100 | ||
| IV | 59 | Y | 2003 (1) | 0 | 0 | 0 | 0 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | ||
| IV | 59 | Y | 2003 (1) | 0 | 0 | 0 | 0 | 0 | 100 | 100 | 0 | 100 | 100 | 100 | ||
*P, pulsotype; SCC, staphylococcal cassette chromosome; MLST, multilocus sequence typing; PVL, Panton-Valentine leukocidin; N, no; Y, yes.
†OX, oxacillin; EM, erythromycin; CL, clinidamycin; GM, gentamicin; AM, amikacin; CP, ciprofloxacin; LV, levofloxacin; TC, tetracycline; TS, trimethoprim-sulfamethoxazole; RF, rifampin; VA, vancomycin.
‡Including 3 pulsotypes each containing only 1 isolate.
