5-year-old boy stops breathing, suffers seizures while on Disney World ride

A 5-year-old boy collapsed while riding on a rollercoaster at Walt Disney World in Florida. Ernesto Tagle stopped breathing and started seizing about 20 seconds into the ride. He was rushed to hospital and was diagnosed with catecholaminergic polymorphic ventricular tachycardia - a rare heart condition that can flare up during periods of extreme excitement. He is currently recovering.