Assumption | ONCHOSIM | EPIONCHO |
---|---|---|
Life expectancy of adult worms | 10 years [38] | 10 years [38] |
Life expectancy of microfilariae | 0.75 years [58] | 1.25 years [59] |
Distribution of worm survival times | Weibull | Exponential |
Proportion of blood meals taken by vectors on humans | 0.96 [30] and expert opinion | 0.96 (matched to ONCHOSIM)a |
Macrofilaricidal effect of ivermectin | Not included | Not included |
Microfilaricidal effect of ivermectin | 100 %, instantaneous upon administration [36] | 98-99 % at 2 mo. post-treatment following [40] |
Embryostatic effect of ivermectin | All female worms temporarily stop producing mf but resume production gradually, reaching maximum production capacity 11 months post-treatment on average [36] | Fertile worms exposed to ivermectin decrease their mf production according to the dynamics presented in [40] and would fully recover if further untreated |
Cumulative effect on mf production by adult worms | 35 % reduction in the rate of mf production per dose, on average [36]. | 35 % reduction in the rate of mf production per dose [36]a |