Age group Population No. Cases Attack rate/1000 population 0-4 4108 22 5.3 5-9 3549 23 6.5 10-14 3549 25 7 15-19 3398 19 5.6 20-24 3396 23 6.7 25-29 3366 34 10.1 30-34 2119 18 8.5 35-39 2116 14 6.6 40-44 2085 14 6.7 ≥ 45 3443 42 12.2 Overall attack rate 31129 234 7.52

Table 2: Attack rate of suspected Chikungunya cases, by age group, Al-Hawtah-Lahj, March- May 2012.