The shape of the curves representing the epidemic size as a function of the disinfection frequency and the proportion of
disinfected traders were altered by changes in TV, PM, and PT. The marginal loss in disinfection efficacy associated with a reduction in disinfection frequency and in the proportion of disinfected traders increased with TV, PM, and PT. Therefore, as
model parameters increased, the outcome of disinfection was more and more sensitive to slight deviations from the recommendations