CNN News:CDC称上万名商业航班旅客恐已暴露在病毒之下

What is the oldest airline in the world? Qantas, Aeroflot, KLM or Delta? KLM Royal Dutch Airlines was founded in 1919, making it the world's oldest airline.
Since the start of 2020, the U.S. Centers for Disease Control says thousands of passengers on commercial flights might have been exposed to coronavirus. That's not specific to KLM or any other single airline. The CDC says it was made aware that on 1,600 flights between January and August, someone on board may have had COVID-19. And that means almost 11,000 passengers could have been exposed according to the health agency. Because they were sitting within a six-foot range of the disease carrier.

This doesn't mean that all these people actually caught coronavirus, and the CDC said, its information is not complete. The airline industry says flying is safe and that it's requiring masks, extensive cleaning and limited passenger interaction to help keep it that way.