Table 1.

Distribution of attack rates by affected group and general.

Group	Cases	Population	Attack Rate
			(%)	* 95% CI
Total Staff	8	51	15.68	7.0–28.6
Surveillance	0	7	0	0.00–49.5
Teachers/Administrative	8	35	22.85	10.4–40.1
Intendancy	0	3	0	0.00–70.7
Cleaning	0	6	0	0.00–45.9
Total Students	6	49	12.24	4.6–24.8
K1 (3 years old)	2	9	22.22	2.8–60.0
K2 (4 years old)	2	12	16.66	2.1–48.4
K3 (5 years old)	2	13	15.38	1.9–45.4
PF (6 years old)	0	10	0	0.00–30.8
1° (7 years old)	0	5	0	0.00–52.1
Family	5	190	2.63	0.8–6.0
Total Community	19	290	6.55	3.9–10.0

* CI 95%: Confidence Interval 95%.