| Variable | Frequency | Percent |
| Sex |
|
|
| Girl | 30/56 | 53.6 |
| Boy | 26/56 | 46.4 |
| Age (years) |
|
|
| 0 to 5 | 15/56 | 26.8 |
| 6 to 10 | 14/56 | 25 |
| 11 to 15 | 27/56 | 48.2 |
| Occupation |
|
|
| Not of age of school | 9/56 | 16.1 |
| Pupil | 45/56 | 80.3 |
| University’ student | 2/56 | 3.6 |
| Contacts with positive patient |
|
|
| No | 36/56 | 64.3 |
| Yes* | 20/56 | 35.7 |
| Persons in contact |
|
|
| Mother | 15/20 | 75 |
| Father | 3/20 | 15 |
| Brother/Sister | 2/20 | 10 |