TABLE 2.
Evolution of pneumococcal genotypes related to the mef(A) or mef(E) gene
| Yr | No. (%) of isolates of the indicated genotypes harboring:
|
||||||
|---|---|---|---|---|---|---|---|
|
mef(E)
|
mef(A)
|
||||||
| Total | Spain9V-3 | 11A-ST62 | Other genotypes | Total | England14-9 | Other genotypes | |
| 1998 | 20 | 5 (25.0) | 1 (5.0) | 14 (70.0) | 2 | 2 | 0 |
| 1999 | 25 | 10 (40.0) | 3 (12.0) | 12 (48.0) | 7 | 6 | 1 |
| 2000 | 28 | 16 (57.1) | 1 (3.6) | 11 (39.3) | 3 | 2 | 1 |
| 2001 | 45 | 29 (64.4) | 0 | 16 (35.6) | 4 | 4 | 0 |
| 2002 | 66 | 41 (62.1) | 8 (12.1) | 17 (25.8) | 10 | 9 | 1 |
| 2003 | 58 | 34 (58.6) | 4 (6.9) | 20 (34.5) | 9 | 8 | 1 |
| Total | 242 | 135 (55.8) | 17 (7.0) | 90 (37.2) | 35 | 31 (88.6.6) | 4 (11.4) |