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National Pesticide Information Center

npic@ace.orst.edu

1.800.858.7378

Diseases Transmitted by Mosquitoes

Some mosquitoes are vectors for diseases. This means they can transmit diseases from one human or animal to another. Typically, the diseases are caused by viruses or tiny parasites. For example, a mosquito that bites an infected human or animal can pick up a virus along with the blood meal. The mosquito and virus do not harm one another but the virus reproduces inside the mosquito. Later, the mosquito can pass the viruses to other humans when biting them.

If you're planning a trip and you're wondering how to protect yourself from vector-borne illness, try visiting the Centers for Disease Control and Prevention's Travelers' Health page.

West Nile Virus

Malaria

Dengue Fever

Chikungunya

Dog Heartworm

Other Diseases Transmitted by Mosquitoes

Return to Mosquito Information


If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email at npic@ace.orst.edu.

Last updated December 18, 2014