Volume 11, Number 6—June 2005
Research
Emergence and Spread of Streptococcus pneumoniae with erm(B) and mef(A) Resistance
David J. Farrell*
, Stephen G. Jenkins†, Steven D. Brown‡, Manish Patel§, Bruce S. Lavin§, and Keith P. Klugman¶#
, Stephen G. Jenkins†, Steven D. Brown‡, Manish Patel§, Bruce S. Lavin§, and Keith P. Klugman¶#Table 2
Proportion of erythromycin-resistant Streptococcus pneumoniae isolates collected from years 1 to 3 of the PROTEKT US study with the dual mef(A)+erm(B) genotype according to patient age
| Patient age (y) | No. erm(B)+mef(A)–positive/no. erythromycin-resistant (%) |
||
|---|---|---|---|
| Year 1 | Year 2 | Year 3 | |
| 0–2 | 88/825 (10.7) | 118/640 (18.4) | 170/710 (23.9) |
| 3–14 | 52/388 (13.4) | 47/365 (12.9) | 84/409 (20.5) |
| 15–64 | 98/1,106 (8.9) | 95/972 (9.8) | 151/1,173 (12.9) |
| >64 | 58/727 (8.0) | 70/755 (9.3) | 98/794 (12.3) |
| Not specified |
8/87 (9.2) |
5/61 (8.2) |
17/91 (18.7) |
| Total | 304/3,133 (9.7) | 335/2,793 (12.0) | 520/3,177 (16.4) |
