Reuters: New weapon in malaria fight: a better bed net
“A new kind of bed net that blocks mosquitoes’ resistance to a common insecticide provides substantially improved protection against malaria, a major study has found. … [S]cientists have developed a novel bed net incorporating a chemical called piperonyl butoxide, which blocks the natural defense mechanisms of insects against the standard insecticide pyrethroid…” (Hirschler, 4/11).

Thomson Reuters Foundation: Trial of new bug spray on malaria nets in Tanzania sets hopes flying
“…A trial by the London School of Hygiene & Tropical Medicine involving 15,000 children found using a bed net treated with piperonyl butoxide reduced malaria infections by 44 percent in the first year compared to nets only treated with pyrethroid. … The trial prompted the World Health Organization (WHO) to revise its recommendations and back wider use of nets sprayed with piperonyl butoxide in areas in Africa where mosquitoes are pyrethroid resistant…” (Wilson, 4/11).