European countries are still discouraging or restricting foreign travellers. It's far from clear when they'll fully open their borders to holidaymakers again
ANDREA FELSTED, BLOOMBERG OPINION COLUMNISTMeanwhile, the constantly changing rules and approaches are wreaking havoc with flight networks and schedules.

Cathay Pacific Airways Ltd. axed services to Vancouver, San Francisco and other cities from this week and has introduced an arduous shift cycle for crew members to bypass Hong Kong’s new rules on quarantine. Cathay crew can volunteer for a 21-day work shift, during which they stay in a company hotel whenever they fly into Hong Kong. That is followed by 14 days of quarantine in another hotel, and then 14 days of leave.

“The focus of governments is almost universally on containing the spread of the virus across borders,” IATA Director General Alexandre de Juniac wrote in his blog in early February. “There is little hope of an imminent return to normal.”

Rather than gradually being wound back, some quarantines are approaching permanency. The Australian state of Victoria has started looking at “long-term” solutions for separating overseas arrivals from the local population, with arrivals housed in newly-built complexes near airports. The review followed an outbreak of the virulent U.K. strain from a quarantine hotel in Melbourne.