 The long-term benefits of deworming include a decrease in school absenteeism by 25 percent, and an increase in adult earnings by 20 percent.The cost of treatment of some of these diseases, however, such as Buruli ulcer, can amount to over twice the yearly income of an average household in the lowest income quartile, while for the highest income quartile, the burden is slightly less than the average household income.These enormous financial costs often cause deferral of treatment and financial ruin, but there is inequality between the wealthy and poor in terms of economic burden.