Malaria prevention, conceptual image. Computer illustration of mosquito nets over healthy red blood cells (erythrocytes, red) protecting them from infection with malaria spread from infected red blood cells (red, lumpy). Malaria is spread by the female Anopheles sp. mosquito, which transmits the parasitic protozoan from one individual to another as it feeds on their blood. Therefore, using mosquito nets to prevent being bitten is a simple but effective way to reduce the risk of infection in affected countries.