| field issues related to effectiveness of insecticide-treated nets in tanzania. | insecticide-treated nets (itns) impregnated with pyrethroid insecticides have become one of the most promising interventions to prevent malaria in highly endemic areas. despite the large body of experience documenting their health impact and the best way to distribute them, some key practical issues remain unresolved. for example, the duration of effective life of a net under field conditions is unknown. the most important factor affecting net effectiveness is the issue of regular re-treatment w ... | 2004 | 15189240 |