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Health
Conditions and Diseases
Mosquitoes

How do mosquitoes spread diseases?

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Wiki User
March 15, 2015 3:57PM

Mosquitos feed on blood. When they bite they inject some fluids into the site to keep the blood from clotting (and which later cause the itchy hive). Some infections, such as malaria, can get into the mosquito when it drinks the blood of an infected person; the germ migrates to the glands that produce the anticoagulant, and then is injected into the blood of the next person bitten. The mosquito is a vector for many diseases. Malaria, dengue and yellow fever are spread like this by mosquitoes.