The company will also shut down Cathay Dragon, its regional airline unit, with operations ceasing from Wednesday. It will seek regulatory approval for most of the routes to be operated by Cathay Pacific
The landmark decision makes it likely other Hong Kongers will be given sanctuary in Canada, which has emerged as a top destination for those fleeing Beijing's crackdown.
"The possibility of reinfections could have significant implications for our understanding of Covid-19 immunity, especially in the absence of an effective vaccine."
Remdesivir is expensive and there is a global shortage while dexamethasone has immunosuppression effects that are risky for all but the most ill patients.
Bids hit the $9 million mark in less than two minutes after the start of the auction, but after 14 minutes there were just three bidders left in the race.