Table 1. Resistance patterns of ST59 CA-MRSA strains isolated in Taiwan, compared to ST59 MRSA USA1000.
Resistance patternsa | Percentage (no./total) | Example (strain) | Plasmidb (size) | ||||
Ery/Cli | Kan | Stm | Chl | Tet | |||
R | R | R | R | R | 50% (12/24) | PM1, PM22 | 26 kb |
R | R | R | R | S | 16.7% (4/24) | PM11 | 21 kb |
R | R | R | S | R | 16.7% (4/24) | PM9 | 26 kb |
R | R | R | S | S | 8.3% (2/24) | PM12 | None |
S | S | S | R | R | 4.2% (1/24) | PM8 | 26 kb |
S | S | S | S | S | 4.2% (1/24) | PM18 | 21 kb |
R(Ery) | S | S | S | S | - | USA1000 | NDc |
The number of strains tested was 24. Non-β-lactam agents: Ery, erythromycin; Cli, clindamycin; Kan, kanamycin; Stm, streptomycin; Chl, chloramphenicol; Tet, tetracycline. USA1000 is a type strain of PVL-positive ST59 MRSA.
Plasmid analysis was carried out for example strains.
Not determined.