Table 2.
Mosquito infectivity produced by the low-density microfilaria (mf) carriers (B) and all levels of mf carriers (A)
| Microfilaria density (mf/ml) | Theoretical % of infected fed mosquitoes (I)* | Theoretical No. of mf positive persons in each mf density group (II) | (I) x (II) |
|---|---|---|---|
| 1 | 0.492 | 13.214 | 6.5 |
| 2 | 1.152 | 8.584 | 9.9 |
| −4 | 2.102 | 11.999 | 25.2 |
| −6 | 2.842 | 8.774 | 24.9 |
| −8 | 3.473 | 7.074 | 24.6 |
| −10 | 4.032 | 6.000 | 24.2 |
| −20 | 6.254 | 21.729 | 135.9 |
| Subtotal 251.2 ...(B) | |||
| −30 | 7.985 | 15.076 | 120.4 |
| −40 | 9.458 | 11.854 | 112.1 |
| −50 | 10.766 | 9.892 | 106.5 |
| −60 | 11.954 | 8.550 | 102.2 |
| −70 | 13.052 | 7.565 | 98.7 |
| −80 | 14.078 | 6.805 | 95.8 |
| −90 | 15.045 | 6.198 | 93.2 |
| −100 | 15.963 | 5.700 | 91.0 |
| −200 | 23.456 | 41.077 | 963.5 |
| −300 | 29.292 | 26.579 | 778.6 |
| −400 | 34.259 | 19.642 | 672.9 |
| −500 | 38.666 | 15.443 | 597.1 |
| −600 | 42.673 | 12.589 | 537.2 |
| −700 | 46.374 | 10.511 | 487.4 |
| −800 | 49.834 | 8.925 | 444.8 |
| −900 | 53.094 | 7.675 | 407.5 |
| −1000 | 56.187 | 6.666 | 374.5 |
| −2000 | 81.449 | 36.479 | 2971.2 |
| −3000 | 100 (101.123) | 13.242 | 1324.2 |
| −4000 | 100 (117.869) | 5.524 | 552.4 |
| ≥4001 | 100 (--) | 4.634 | 463.4 |
| Subtotal 11394.6 | |||
| Total | 358.000 | 11645.8 ...(A) | |
* Estimated from log (Y + 1) = 0.5278 log X + 0.1739, where Y = % infected, X = mf density of a carrier. {Source: Adopted from Ref. [36]}