TABLE 6.
Order of frequency of serotypes among the 114 penicillin-nonsusceptible (MIC >0.064 μg/ml) invasive pneumococcal isolates from three age groups in Denmark from 1995 to 1999a
| Order of frequency | <2 yr
|
2-59 yr
|
≥60 yr
|
|||
|---|---|---|---|---|---|---|
| Type | No. (%) | Type | No. (%) | Type | No. (%) | |
| 1 | 19F | 3 | 9V | 10 | 9V | 17 |
| 2 | 6B | 2 | 23F | 5 | 14 | 12 |
| 3 | 9V | 2 | 14 | 5 | 19F | 9 |
| 4 | 19A | 2 | 19F | 4 | 19A | 8 |
| 5 | 14 | 1 | 5 | 3 | 15B | 4 |
| 6 | 34 | 1 | 15B | 3 | 6A | 4 |
| 7 | Rough | 1 | 6B | 2 | 35F | 2 |
| 8 | 15C | 2 | 5 | 2 | ||
| 9 | 19A | 2 | 10A | 1 | ||
| 10 | 35F | 1 | 23F | 1 | ||
| 11 | 6B | 1 | ||||
| 12 | 15C | 1 | ||||
| 13 | 23B | 1 | ||||
| 14 | 9N | 1 | ||||
| 15 | Rough | 1 | ||||
| Total | 12 (10.5) | 37 (32.5) | 65 (57.0) | |||
a
Valves in parentheses give the percentage of the 114 penicillin-nonsusceptible (MIC >0.064 μg/ml) invasive pneumococcal isolates.