| Age | No of observed | Positive Cases | Doubtful Cases | Negative Cases | |||
| No | % | No | % | No | % | ||
| ≤2 years | 50 | 0 | 0 | 4 | 8 | 46 | 92 |
| 2 < X < 4 years | 73 | 3 | 4.1 | 12 | 16.4 | 58 | 79.5 |
| X ≥ 4 years | 17 | 4 | 23.5 | 5 | 29.5 | 8 | 47.1 |
| Total | 140 | 7 | 5 | 21 | 15 | 112 | 80 |