Table 2. Pool positivity and estimated prevalence of filarial DNA in the PHC EU, 2010 and 2012.
| Year | Survey (sample) | Household trap sites | Pools collected | Mosquitoes collected | Pool size mean and SD (range) | Positive pools | % Positive pools [95% CI] | W.bancrofti DNA detection prevalence in mosquitoes 1 [95% CI] |
|---|---|---|---|---|---|---|---|---|
| 2010 | PHC (sample 1) | 231 | 231 | 5437 | 23.5 ± 3.2 (10–25) | 54 | 23.4% [18.4, 29.2] | 1.1% [0.8, 1.5] |
| PHC (sample 2) | 231 | 230 | 5329 | 23.2 ± 3.5 (9–25) | 41 | 17.8% [13.4, 23.3] | 0.9% [0.6, 1.2] | |
| 2012 | PHC (sample 1) | 231 | 231 | 5094 | 23.3 ± 3.7 (8–25) | 15 | 6.5% [4.0, 10.4] | 0.3% [0.2, 0.5] |
| PHC (sample 2) | 231 | 231 | 5385 | 23.0 ± 5.7 (2–25) | 12 | 5.2% [3.0, 8.9] | 0.2% [0.1, 0.4] |
1 Maximum likelihood estimate using PoolScreen.