CNN: Written by Michael Nedelman. August 18, 2018.
When Marcy Cornell's toddler son "couldn't breathe" on the first day of their recent Florida vacation, she took him straight to the emergency room.
"Before they even asked me anything else ... they said, 'Did you go to the beach today?' " she recalled.
Doctors said her son had upper airway inflammation "brought on by the red tide," she said.
Evan, almost 2 years old, is doing just fine now. But the warning signs were there from the start.