Aircraft passengers are twice or even three times more likely to catch Covid-19 during a flight since the emergence of the omicron variant, according to the top medical adviser to the world’s airlines.
The new strain is highly transmissible and has become dominant in a matter of weeks, accounting for more than 70% of all new cases in the U.S. alone. While hospital-grade air filters on modern passenger jets make the risk of infection much lower on planes than in crowded places on the ground such as shopping malls, omicron is rapidly spreading just as more travelers take to the skies for year-end holidays and family reunions.