Table 3.
Monthly transmission potentials (MTPs) and number of infective black flies per site through the study period
| Monthly transmission potential (MTP)/no. of infective flies | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. dissected | Rainy season | Dry season | ||||||||||
| Site | Parous rate (%) | Aug-21 | Sept-21 | Oct-21 | Total | Parous rate (%) | Dec-21 | Jan-22 | Feb-22 | Mar-22 | Total | |
| Haijam/V5 | 434 | 83.9 | 27.1/3 | 24.0/3 | 0 | 51.1/6 | 0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| Mbere-Tchad | 1866 | 62.0 | 3.9/1 | 42.0/5 | 27.1/2 | 73.0/8 | 86.8 | 0/0 | 32.3/2 | 238.8/7 | 22.9/1 | 294.0/10 |
| Babidan | 1464 | 0 | 0/0 | 0/0 | 0/0 | 0/0 | 66.3 | 0/0 | 73.3/3 | 72.7/2 | 0/0 | 146.0/5 |
| Touboro | 110 | 0 | 0/0 | 0/0 | 0/0 | 0/0 | 56.4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| Gor | 2370 | 41.5 | 0/0 | 8.0/2 | 12.6/2 | 20.7/4 | 70.0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| Djeing | 601 | 39.4 | 0/0 | 0/0 | 0/0 | 0/0 | 0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| Koinderi | 56 | 92.9 | 0/0 | 0/0 | 0/0 | 0/0 | 0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| Total | 6901 | 144.8/18 | 440.0/15 | |||||||||
MTP values were calculated from L3 larvae from the head (L3H) that were morphologically indistinguishable from Onchocerca volvulus