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Mosquito-borne diseases or mosquito-borne illnesses are diseases caused by bacteria, viruses or parasites transmitted by mosquitoes. Nearly 700 million people contract mosquito-borne illnesses each year, resulting in more than a million deaths.
Mosquitoes are vectors for a large number of diseases, the large majority being viral in nature. Mosquito-borne viruses fall into four major groups: Bunyavirales, Flaviviridae, Togaviridae, and Reoviridae. They can present as either arbovirus encephalitis or viral hemorrhagic fevers.
Sandfly species transmit the disease leishmaniasis, by acting as vectors for protozoan Leishmania species, and tsetse flies transmit protozoan trypansomes (Trypanosoma brucei gambiense and Trypansoma brucei rhodesiense) which cause African Trypanosomiasis (sleeping sickness). Ticks and lice form another large group of invertebrate vectors.
West Nile is the most common mosquito-borne disease in the continental United States, according to the CDC. There have been 289 West Nile cases reported to the CDC in the country so far this year.
Local health departments also work to reduce mosquito numbers, including spraying neighborhoods with insecticide. Authorities in Massachusetts are using trucks and planes this week to spray vulnerable areas. Here's a look at some common — and not so common — mosquito-borne diseases. Eastern equine encephalitis
West Nile virus is the leading cause of mosquito-borne disease in the contiguous United States, according to the Centers for Disease Control and Prevention (CDC).
West Nile virus remains the leading mosquito-borne disease threat in the U.S. As of Aug. 22, 247 cases had been confirmed this year, with Arizona and Colorado reporting the most, according to the ...
Malaria is a mosquito-borne infectious disease that affects vertebrates and Anopheles mosquitoes. [6] [7] [3] Human malaria causes symptoms that typically include fever, fatigue, vomiting, and headaches. [1] [8] In severe cases, it can cause jaundice, seizures, coma, or death.