Florida health officials have confirmed several residents have been infected with the Zika virus by local mosquitos.
This is the first known mosquito-borne Zika transmission in the continental United States.
Florida Gov. Rick Scott announced Friday that four individuals from Miami-Dade and Broward counties were infected with Zika. "While no mosquitoes have tested positive for the Zika virus, DOH is aggressively testing people in this area to ensure there are no other cases," he stated.
All previous Zika cases in the United States were from people infected during trips overseas.
The Centers for Disease Control says the virus is linked to serious birth defects.