India, March 15 -- Trinity Peterson-Mayes, a 24-year-old from Arizona and a two-time childhood cancer survivor, is now facing a life-threatening illness from a rare toxin linked to a meal with friends.

Diagnosed with a rare childhood cancer at just 2 months old, Trinity fought and won that battle. At age 11, she faced an aggressive form of bone cancer and overcame it again.

Last month, during a casual gathering, Trinity and five friends decided to try a friend's homemade fermented swordfish dish.

"It tasted horrible, I'm going to be so honest," Trinity told local outlet KPNX. "It's supposed to be healthy and I figured I might as well try, if it's bad and I'll just get a bad stomach ache."

Days later, alarming symptoms set in. She stru...