Table 2. Serotype distribution of invasive GBS isolates for cultures collected from infants, Minnesota, USA, January 2000–December 2010*.
| CPS type | No. (%) patients† |
||
|---|---|---|---|
| Early onset | Late onset | Total | |
| Ia | 79 (30.7) | 57 (29.7) | 136 (30.3) |
| Ib | 25 (9.7) | 12 (6.2) | 37 (8.2) |
| II | 43 (16.7) | 5 (2.6) | 48 (10.7) |
| III | 57 (22.2) | 95 (49.5) | 152 (33.9) |
| IV | 8 (3.1) | 4 (2.1) | 12 (2.7) |
| V | 39 (15.2) | 18 (9.4) | 57 (12.7) |
| VII | 2 (0.8) | 0 (0.0) | 2 (0.4) |
| Nontypeable |
4 (1.6) |
1 (0.5) |
5 (1.1) |
| Total | 257 (100.0) | 192 (100.0) | 449 (100.0) |
*GBS, group B Streptococcus; CPS, capsular polysaccharide serotype. †Early-onset, patient age birth–6 days; late-onset, patient age 7–180 days.