[NautiNurse]

The deaths were in Bay, Broward, Hillsborough and St. Johns counties (Two Gulf and two Atlantic coast counties).

Nationwide, vibriosis from Vibrio vulnificus and other Vibrio bacteria causes an estimated 80,000 illnesses and 100 deaths every year, according to the Centers for Disease Control (CDC).

[Fireone]

Interesting, no cases in Martin, St. Lucie, or Indian River, which would be affected by the draining of the big lake, every year.
It causes so many other ecological problems, I would have guessed this might be one of them.