Table 3 Prevalence of co-resistance to penicillin and erythromycin among Streptococcus pneumoniae isolates collected during the PROTEKT US study Years 1–4 according to US region
Proportion of isolates (n [%]) | ||||
|---|---|---|---|---|
Region | Year 1 | Year 2 | Year 3 | Year 4 |
North-central | 446 (21.2) | 385 (17.7) | 431 (17.8) | 321 (16.1) |
Northeast | 606 (16.3) | 428 (13.5) | 471 (13.9) | 336 (12.1) |
Northwest | 55 (13.0) | 73 (13.7) | 66 (12.1) | 42 (9.7) |
South-central | 381 (26.2) | 309 (23.2) | 378 (21.9) | 204 (15.3) |
Southeast | 310 (29.2) | 309 (22.2) | 282 (19.6) | 157 (15.3) |
Southwest | 264 (19.6) | 205 (14.5) | 152 (11.2) | 70 (7.6) |
USA total | 2,061 (20.4) | 1,709 (17.1) | 1,780 (16.4) | 1,130 (13.3) |