"At 8:40pm (0040 GMT Sunday) Diana was stung on the neck by an Olindias Formosa jellyfish (aka Flower Hat Jelly), which is indigenous to the area," her support team reported. "She was treated with topical cream, remained calm and continues to swim."
The swimmer, who turns 63 on Wednesday, hit the water on Saturday afternoon after her departure was pushed up a day over fears of poor weather.
"When I was five years old, I used to stand on the beach (in Florida) and I said to my mother: I wonder if anybody could swim over there" to Cuba, she said.
The 50-strong support team working from five yachts includes divers with extensive shark experience as well as jellyfish experts.
Ms Nyad was forced to abandon her most recent attempt to cross the Florida Straits in September 2011, 40 hours in, after medics warned that she had suffered dangerous jellyfish stings.
The swimmer's first failed bid to swim from Cuba to Florida was 34 years ago in 1978. Her comeback in August 2011 was hobbled by shoulder pain, asthma and ocean swells.
Source: AFP
