Table 1 Summary of black fly total catch and dissection in the three catch points of the study villages
Villages | Catch pointsa | No. of female black flies collected | Annual biting rate | No. of black flies dissected | No. of parous female black flies (%) | No. of black flies with Onchocerca volvulus L1–L3 | No. with L3 (%) | No. of L3 (total) | No. of L3 in black flies (head) | Annual transmission potential |
|---|---|---|---|---|---|---|---|---|---|---|
Bayomen | P1 | 27,103 | 274,200 | 16,137 | 711 (4.4) | 21 | 10 (0.06) | 12 | 12 | 165 |
P2 | 10,226 | 103,586 | 8350 | 373 (4.5) | 9 | 3 (0.04) | 3 | 2 | 44 | |
P3 | 6161 | 57,892 | 5522 | 351 (6.36) | 16 | 7 (0.13) | 7 | 7 | 80 | |
Biatsota | P1 | 21,194 | 214,809 | 14,461 | 737 (5.1) | 28 | 12 (0.08) | 15 | 15 | 255 |
P2 | 9193 | 93,114 | 6895 | 323 (4.7) | 17 | 6 (0.08) | 6 | 6 | 62 | |
P3 | 6855 | 69,497 | 6152 | 248 (4) | 17 | 6 (0.09) | 6 | 6 | 60 |