This video segment adapted from Rx for Survival examines malaria in sub-Saharan Africa, a disease that kills more than one million children there each year. It explains how a deadly parasite, a member of the genus Plasmodium, enters the bloodstream via a mosquito bite and how it multiplies once inside host red blood cells. The video reveals that drug counterfeiting has increased malaria's death toll, and that newer drugs, while more effective than older ones, are too expensive for most Africans to acquire. The video also highlights one simple and low-cost solution—bed nets—that can be used to combat disease transmission.