TABLE 2.
Child | 1998
|
1999
|
|||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
9/24 | 10/29 | 11/9 | 11/17 | 11/24 | 12/4 | 12/15 | 1/21 | 1/25 | 1/28 | 3/1 | 3/2 | 3/9 | 3/15 | 3/23 | |
1 | (−) | M1 | — | M1 | M4 | M1, S5, S6 | — | M6 | M7 | — | M7 | — | S9 | — | (−) |
2 | (−) | M1, S1 | — | M1 | — | M1 | — | — | (−) | — | (−) | — | — | H | S10 |
3 | (−) | (−) | — | M2, S4 | — | M4, H | M4, S7 | — | M7, S8 | M7, H, S8 | — | M8, H | — | — | (−) |
4 | (−) | (−) | M2 | M3 | — | M5 | — | — | M7 | — | — | — | M7 | — | (−) |
5 | (−) | S2, S3 | — | (−) | — | M4 | — | — | M5 | — | — | — | M7 | — | (−) |
6 | (−) | (−) | M2 | M2 | — | M4 | — | M7 | — | — | — | — | S8 | — | S8 |
Clusters of infection spanned the following dates: M1, 10/29/98 to 12/4/98; M2, 11/9/98 to 11/17/98; M4, 11/24/98 to 12/15/98; M7, 1/21/99 to 3/9/99. M1 to M8, M. catarrhalis; S1, S2, and S10, penicillin-resistant S. pneumoniae; S3, S4, S5, and S9, intermediately penicillin-resistant S. pneumoniae; S6, S8, and S9, penicillin-susceptible S. pneumoniae; H, H. influenzae; (−), only nasopharyngeal flora isolated or no bacterial species isolated from the nasopharynx; —, not screened.