Malaria
People usually get malaria from the Anopheles or Culex mosquitoes : they are the vectors of the disease. The Plasmodium gets into people by the bites of mosquitoes. The Plasmodium is in the mosquito's special saliva. The mosquito's saliva injects an anticoagulant into the person to prevent their blood from clotting. The person is then infected with Plasmodium as a by-product. This makes the person have the disease we call malaria.