Economic migration related to agricultural harvesting, logging, gem-mining, or trading brings people into the most dangerous malaria transmission areas, often in very rough living conditions. Vector control measures may not be feasible in deep forest, sparsely settled areas, transient sites, and along international borders. Malaria is an infection of the red-blood cells by a parasite that is carried by mosquitoes from human to human. The classic symptoms of malaria are fever, chills, and sweating, which occur every 2 or 3 days, depending on the species of parasite. These parasites invade red-blood cells, multiply, and then burst out, which causes the symptoms.
Anemia follows from the destruction of red-blood cells.
One species, Plasmodium falciparum , can also cause serious complications in the brain and other parts of the body, leading to death. Only a few of the many species of Anopheles mosquitoes are carriers of malaria. Malaria can be treated by drugs, but it is better to prevent the bite of infected mosquitoes. Some of the important mosquito vectors of malaria in Asia.