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Reduce your chance of mosquito bites and exposure to West Nile virus
Miami-Dade County is currently under a Florida Department of Health (FDOH) mosquito-borne illness alert because of the active circulation of the West Nile virus (WNV).
West Nile virus (WNV) is the number one cause of mosquito-borne disease in the continental United States. It is mostly spread to people by the bite of an infected mosquito. Cases of WNV usually occur during peak mosquito season (May-October). West Nile virus can infect humans, birds, horses and some other mammals. In Miami-Dade County, although anyone is susceptible to the virus, most people (8 out of 10) infected with West Nile virus do not develop any symptoms. The elderly and people with suppressed immune systems are most susceptible.
Prevention is the best way to protect yourself and your family from WNV. According to the Centers for Disease Control and Prevention (CDC), fighting mosquito bites is key to reducing your risk of getting WNV.
Mosquito surveillance is performed year-round and Mosquito Control provides public education and outreach to affected areas of our county.
- To determine where West Nile virus is present within Miami-Dade County and the extent of spread through adult mosquito surveillance.
- Estimate the intensity of West Nile virus activity, if present.
Our mosquito control activities include mosquito trapping and conducting treatments for both mosquito larvae and flying adult mosquitoes by truck spray. The larvicide we use to prevent high number of adults is VectoBac WDG. The active ingredient is Bacillus thuringiensis israelensis (Bti, strain AM6552), a naturally occurring, biodegradable bacterial biopesticide. It is certified by the Organic Materials Review Institute (OMRI) and is registered for use by the US Environmental Protection Agency. For reducing adult mosquitoes we use two major active ingredients: pyrethroids and organophosphates. In addition to area-wide truck sprays, mosquito control inspectors perform inspections at locations with suspected and confirmed human cases of WNV based on referrals from the Florida Department of Health. Inspectors assess the outdoor environment, eliminate standing water, treat sources such as artificial containers and storm drains identified to house mosquito larvae. They also provide Drain & Cover educational materials and encourage the use of mosquito repellent.
Learn more about mosquitos
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