United sees revenue stalling at 50% without a virus vaccine

An increase in air travel has stalled, but United Airlines says it will resume once the current resurgence in new coronavirus cases is over. But even then, the airline says revenue will hover at around 50% of normal until there is a vaccine for COVID-19. United executives made the comments Wednesday on a call with analysts and reporters. The airline lost $1.6 billion in the second quarter as revenue plunged 89% from the same period last year. United also says passengers must now wear face masks