According to the TV newsies, a very small area in Florida, maybe a square mile, north of Miami is the cause.
You would think a few hundred gallons of DDT, or whatever less effective insecticide the greenies allow us to use would solve the problem in a day or two. TV newsies aren't saying anything about spraying the skeeters. Maybe they haven't thought of it, maybe spome greenie regulation prevents it, who knows. But a one square mile pest hole is treatable. Best to treat is now, before it spreads.