Table 3. Antimicrobial resitance rates in Streptococcus suis strains tested by origins and cps types.
| Antimicrobial agents | Origins |
cps types |
||
|---|---|---|---|---|
| Endocarditis | Tonsils | cps2J+ | Others | |
| n=50 | n=64 | n=49 | n=65 | |
| Tetracycline | 86.0 | 76.6 | 91.8b) | 72.3 |
| Erythromycin | 66.0 | 48.4 | 75.5b) | 41.5 |
| Clarithromycin | 66.0 | 48.4 | 75.5b) | 41.5 |
| Clindamycin | 70.0 | 62.5 | 75.5 | 58.5 |
| Chloramphenicol | 6.0 | 15.6 | 2.0 | 18.5b,c) |
| Sulfamethoxazole-trimethoprim | 6.0 | 20.3a) | 2.0 | 23.1b,d) |
Only drugs with resistant strains were shown. a) P<0.05. b) P<0.01. c) cps types 4, 15, 16, 25, 28 (1 strain each), 31 (3), and untypable (4). d) cps types 6 (1 strain), 3, 15 (2 each), 16, 31 (3 each), and untypable (4).