Malaria is an infectious virus caused by protozoan parasites from the Plasmodium family that can be transmitted by the bite of the anopheles mosquito or by a contaminated needle or transfusion.It is most likely to be effected in tropical climates. It travels from host-to-host through insects destroying red blood cells as it multiplies. Some common symptoms someone may experience if they have this disease are high fevers, shaking chills, flu-like symptoms, and anemia. Falciparum is the most deadly type of malaria.