Table 3 Entomological indices of O. volvulus transmission
Fly collection site | Total number of flies caught | Total dissected | No of parous flies (parous rate %) | No of infected flies (infection rate %) | No of infective flies (infective rate %) | L3/infective female | L3 /1000 parous females | Monthly transmission potential |
|---|---|---|---|---|---|---|---|---|
Berenge | 577 | 422 | 123 (29.1) | 25(5.9) | 10 (2.4) | 3.8 | 308.9 | 211.9 |
Betenge | 284 | 284 | 117 (41.0) | 4 (1.4) | 2 (0.7) | 5.5 | 94.0 | 31 |
Big massaka | 1292 | 216 | 54 (25) | 9 (4.2) | 6 (2.8) | 2 | 222.2 | 1112.6 |
Bombele | 4465 | 1025 | 425 (41.5) | 103 (10) | 22 (2.1) | 4.8 | 247.1 | 742.7 |
Kwakwa | 5241 | 1029 | 450 (43.7) | 52 (5.1) | 19 (1.8) | 3.2 | 135.6 | 750 |
Marumba 1 | 540 | 353 | 63 (17.8) | 10 (2.8) | 3 (0.8) | 3.7 | 127.0 | 268.6 |
Small massaka | 1234 | 704 | 223(31.6) | 21 (3.0) | 2 (0.3) | 2 | 17.9 | 27.2 |
Total | 13,633 | 4033(29.6%) | 1455 (36.1) | 224(5.5) | 64(1.6) | Â | Â | Â |