Malaria is a disease caused by parasites (any 1 of 5 closely related) that are spread through mosquito bites. Malaria is currently found in Central and South America, Africa, and Asia. It was once found in the United States but was eliminated in 1951 after a large national program called the National Malaria Eradication Program worked extensively to kill mosquitoes and remove mosquito breeding sites. Even though the program was successful there have been random outbreaks in the US. For a complete list of countries where active malaria transmission is occurring, see list of affected areas.
  1. Transmission
  2. Signs & Symptoms
  3. Treatment
  4. Prevention
Malaria is spread primarily through mosquito bites. These mosquitoes generally feed from evening to early morning so it is important to protect against mosquito bites whenever you are outside. In Maricopa County, we do have Anopheles mosquitoes; however, we do not have mosquitoes infected with malaria.