TABLE 4.
Susceptibility of isolates to penicillin, macrolide, and clindamycin by serotype
| Serotype(s) | No. of isolates with susceptibility(ies)a
|
Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Susc. | p | M | MC | pM | P | pMC | PM | PMC | ||
| All V | 995 | 32 | 15 | 6 | 3 | 23 | 2 | 59 | 10 | 1,145 |
| 19F | 140 | 3 | — | 2 | 2 | — | — | 13 | 3 | 163 |
| 14 | 291 | 7 | 8 | 1 | 1 | 2 | 35 | 5 | 350 | |
| 6B | 140 | 6 | 6 | 1 | — | 4 | 1 | 3 | 1 | 162 |
| 23F | 98 | 8 | — | — | — | 10 | — | 3 | 1 | 120 |
| 9V | 116 | 6 | — | — | — | 7 | 1 | 4 | — | 134 |
| 18C | 98 | — | — | 2 | — | — | — | — | — | 100 |
| 4 | 112 | 2 | 1 | — | — | — | — | 1 | — | 116 |
| All VR | 145 | 16 | 2 | 0 | 10 | 1 | 0 | 3 | 12 | 189 |
| 6A | 56 | 3 | 1 | — | 5 | 1 | — | 3 | — | 69 |
| 19A | 32 | 13 | 1 | — | 5 | — | — | — | 12 | 63 |
| 23 not F | 3 | — | — | — | — | — | — | — | — | 3 |
| 9 not V | 36 | — | — | — | — | — | — | — | — | 36 |
| 18 not C | 18 | — | — | — | — | — | — | — | — | 18 |
| All NV | 251 | 4 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 257 |
| 1 | 10 | — | — | — | — | — | — | — | — | 10 |
| 3 | 38 | — | — | — | — | — | — | — | — | 38 |
| 7 | 24 | 1 | — | — | — | — | — | — | — | 25 |
| Nontypeable | 6 | 1 | — | — | — | — | — | — | — | 7 |
| Other | 173 | 2 | 1 | — | — | — | 1 | — | — | 177 |
| Total | 1,391 | 52 | 18 | 6 | 13 | 24 | 3 | 62 | 22 | 1,591 |
a
—, no isolates; Susc., susceptible to all three drug classes; p, penicillin intermediate; P, penicillin resistant; M, macrolide resistant; C, clindamycin resistant.