Table 1. Attack rates per 100,000 population by age group for suspected meningitis cases, Pissy Medical Health Centre, Burkina Faso*.

Age group, y	Population	No. cases	Attack rate/100,000
<1	19,772	216	1,092
1–4	68,681	453	660
5–14	145,688	289	198
15–29	145,688	220	151
>30	140,485	129	92
All	520,314	1,307	251

*Weeks 6–18 (Feb 4–May 5), 2002 (n = 1,307). Population data are for the entire district of Pissy.