CHICAGO (NewsNation Now) — An EMT says he has symptoms of COVID-19 after performing CPR on a man who went into cardiac arrest on a flight.

Tony Aldapa says his training kicked in and he didn’t think twice about jumping into action when he saw a passenger in distress on a flight from Orlando to Los Angeles on Dec. 14.

Aldapa and two other healthcare workers treated the man as the plane made an emergency landing.

The passenger was taken to a Louisiana hospital where he later died.

An autopsy confirmed that man was infected with COVID-19.

United Airlines says they gave the Centers for Disease Control and Prevention the flight manifest to warn passengers of the potential exposure.