Volume 17, Number 2—February 2011
Dispatch
Alert System to Detect Possible School-based Outbreaks of Influenza-like Illness
Table
Influenza-like illnesses identified through an SBASS, Miami-Dade County, Florida, USA, September 8–October 21, 2009*
| Week | Dates | No. red alerts | No. yellow alerts | No. warning alerts | No. schools with outbreaks identified through SBASS | No. ILI identified through SBASS |
|---|---|---|---|---|---|---|
| 1 | Sep 8–Sep 11 | 3 | 2 | 17 | 0 | 0 |
| 2 | Sep 14–Sep 18 | 8 | 2 | 16 | 1 | 27 |
| 3 | Sep 21–Sep 25 | 9 | 11 | 10 | 2 | 17 |
| 4 | Sep 28–Oct 2 | 9 | 4 | 7 | 0 | 0 |
| 5 | Oct 5–Oct 9 | 16 | 4 | 11 | 2 | 7 |
| 6 | Oct 12–Oct 16 | 16 | 5 | 6 | 1 | 20 |
| 7 |
Oct 19–Oct 21 |
0 |
0 |
0 |
3 |
0 |
| Total† | Sep 8–Oct 21 | 61 | 28 | 67 | 9 | 71 |
*SBASS, school-based absentee surveillance system.
†3 d were excluded due to school closures. October 20–21, high schools were excluded for participation in Florida’s Comprehensive Assessment Test and only elementary schools were counted.


