This is the big focus of the NBA's fundraising right now. I heard about it attending a 100 year anniversary at a Methodist church yesterday-the United Methodist church, the Rotary club, AOL, Sports Illustrated are all founding members.
http://www.nothingbutnets.net/partners /

http://www.nothingbutnets.net /

In the poorest parts of the world, where effective window screens are lacking, insecticide-treated bed nets are arguably the most cost-effective way to prevent malaria transmission. One bed net costs just $10 to buy and deliver to individuals in need. One bed net can safely last a family for about four years, thanks to a long-lasting insecticide woven into the net fabric.

Studies show that use of insecticide-treated bed nets can reduce transmission as much as 90% in areas with high coverage rates. Bed nets prevent malaria transmission by creating a protective barrier against mosquitoes at night, when the vast majority of transmissions occur. The African malaria mosquitoes generally bite late at night or early morning, between 10:00 p.m. and 4:00 a.m. A bed net is usually hung above the center of a bed or sleeping space so that it completely covers the sleeping person. A net treated with insecticide offers about twice the protection of an untreated net and can reduce the number of mosquitoes that enter the house and the overall number of mosquitoes in the area.