It actually seems to be a fairly close call. It seems that bed nets prevent about 1 death from malaria for every $2000 or so [1], whereas the quality of life of

It actually seems to be a fairly close call. It seems that bed nets prevent about 1 death from malaria for every $2000 or so [1], whereas the quality of life of some of the Watsi patients can be significantly improved for $500 to $1000 [see 2]. So the question is what the relative value of each is, and while I think the balance weighs in favor of malaria prevention, it's not a clear-cut decision. [1] http://www.givewell.org/international/technical/programs/insecticide-treated-nets http://www.givewell.org/international/technical/programs/ins... [2] https://watsi.org/profile/8d8d49907cc9-hussein https://watsi.org/profile/8d8d49907cc9-hussein