The disease caused by a protozoan and spread by an insect is known as ______ .
∙ Malaria is a life-threatening mosquito-borne blood disease caused by the Plasmodium parasite. It is an intermittent and remittent fever caused by a protozoan parasite which invades the red blood cells and is transmitted by mosquitoes in many tropical and subtropical regions.
∙ Dengue is caused by dengue virus.
∙ Polio is caused by the poliovirus.
∙ Measles is caused by rubeola virus.