Dengue is spread mainly via the Aedes aegypti mosquito, which is also known to carry several other viruses such as yellow fever, chikungunya and Zika.
Mandatory Credit:	Shutterstock/AP

Dengue is spread mainly via the Aedes aegypti mosquito, which is also known to carry several other viruses such as yellow fever, chikungunya and Zika.
Mandatory Credit: Shutterstock/AP

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What to know about dengue as cases are reported in Florida

The Florida Department of Health placed two counties under a mosquito-borne illness alert as five cases of dengue have been reported in Broward and Miami-Dade counties in less than a month, weekly reports show.