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What Diseases Do Mosquitoes Spread?
Mosquitoes have garnered notoriety for their role in spreading diseases globally. Annually, vector-borne diseases cause over 700,000 deaths worldwide, disproportionately affecting populations in tropical and subtropical regions while posing a global threat. Common mosquito-borne diseases include:
- Malaria
- Dengue
- Schistosomiasis
- Chagas disease
- Yellow fever
- Zika virus
- Rift Valley fever
- West Nile virus
Which Mosquitoes Can Transmit Disease?
Aedes, Culex, and Anopheles mosquitoes, encompassing multiple species within these families, are the primary vectors responsible for transmitting diseases. Fortunately, numerous mosquito species are not disease vectors and are primarily nuisance pests.
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What Diseases Do Mosquitoes Carry in the U.s.?
While over 200 mosquito species inhabit the United States, only around 12 are capable of transmitting diseases. Dengue, chikungunya, Zika virus, and Malaria outbreaks have occurred in Florida, Texas, Puerto Rico, Hawaii, and the US Virgin Islands. Most reported malaria cases stem from travelers returning from tropical regions. The majority of encountered mosquito species are nuisance mosquitoes that do not transmit diseases causing illness in humans.
Symptoms of Mosquito-Borne Disease
Mosquito bites from nuisance species typically result in mild symptoms. However, specific symptoms may indicate a more severe condition, including:
- Sudden high fever
- Stiff neck
- Confusion
- Nausea or vomiting
- Muscle tremors or seizures
- Severe headaches
- Rash
Observing any of these symptoms following a suspected mosquito bite necessitates immediate medical attention.