Table 4 Genotyping analysis by erythromycin resistance phenotype of Streptococcus pneumoniae isolates (n = 468) collected from Japanese children (aged < 16 years) with community-acquired respiratory tract infections (combined data for all four 1-week study periods).
No. of isolates (%) | |||
|---|---|---|---|
Genotype | ERY-S (n = 104) | ERY-I (n = 12) | ERY-R (n = 352) |
erm(B) | 5 (4.8) | 3 (25.0) | 207 (58.8) |
erm(B) + mef(A) | 1 (1.0) | 0 (0.0) | 8 (2.3) |
mef(A) | 1 (1.0) | 7 (58.3) | 131 (37.2) |
erm(A) subclass erm(TR) | 0 (0.0) | 0 (0.0) | 1 (0.3) |
Negative for mechanisms tested | 97 (93.3) | 1 (8.3) | 1 (0.3) |
Not viable for testing | 0 (0.0) | 1 (8.3) | 4 (1.1) |