Malaria is a mosquito-borne sickness caused by a parasite. The parasite is transmitted to humans through the bites of infected mosquitoes. Those who have protozoal infection typically feel terribly sick, with a high fever and shaking chills. Left untreated, they'll develop severe complications and die. Whereas the sickness is unusual in temperate climates, the protozoal infection continues to be common in tropical and semitropical countries. World health officers are attempting to cut back the incidence of protozoal infection by distributing bed nets to assist shield individuals from dipteran bites as they sleep. Scientists round the world are operating to develop an immunogen to forestall protozoal infection.