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Frequency distribution of parasitic infections per age groups.
| Age Group | S. mansoni | Hookworm | A. lumbricoides | T. trichiura | G. lamblia | H. nana | E.vermicularis | E. histolytica | E. coli |
|---|---|---|---|---|---|---|---|---|---|
| <2.5 yrs | 1 | 0 | 1 | 0 | 4 | 1 | 0 | 0 | 3 |
| 2.5–3 yrs | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 |
| 3.0–3.5 yrs | 2 | 0 | 1 | 0 | 6 | 0 | 1 | 0 | 3 |
| 3.5–4.0 yrs | 3 | 1 | 1 | 0 | 9 | 1 | 0 | 1 | 5 |
| 4.0–4.5 yrs | 5 | 1 | 3 | 4 | 15 | 7 | 2 | 0 | 0 |
| 4.5–5 yrs | 8 | 0 | 4 | 0 | 19 | 4 | 0 | 0 | 2 |
| Grand total | 20 | 2 | 11 | 4 | 54 | 13 | 3 | 1 | 14 |
