It began as normally as a plane flight could during a pandemic. United Airlines Flight 591, carrying 164 people, took off from Orlando, Fla., on Dec. 14 for a routine 5½-hour ride to Los Angeles. But as the plane glided over Louisiana, a passenger felt short of breath. Soon, 69-year-old Los Angeles resident Isaias Hernandez was lying in the aisle, unresponsive. Flight attendants put a call over the intercom, asking whether any doctors or nurses were on board.

Source: Los Angeles Times December 24, 2020 22:32 UTC