(Reuters) –Marriott International Inc reported a quarter-quarter profit Tuesday as a result of higher vaccination rates and increased holiday-season traffic, which boosted hotel occupancy rates.

Rising global vaccination rates have allowed the already-stricken hotel industry to take some time to recover. This has led to customers returning to luxurious holiday stays and a better quality of life.

Marriott has seen a rise in international trade and travel restrictions that have facilitated its growth, in particular in North America.

Anthony Capuano, Chief Executive Officer, stated that each of the regions experienced significant continued RevPAR recoveries in the fourth quarter, compared with the third quarter. Greater China was the only exception, as recovery was slowed by their zero COVID policies.

In the JW Marriott and Ritz-Carlton owners’ key U.S./Canada regions, 60% occupied in the fourth quarter compared to 35.1% one year ago. The Greater China area had 54.1% of the total occupancy.

Marriott has more than doubled its quarterly revenues to $4.45 Billion, compared with last year.

For the fourth quarter ending Dec. 31, 2014, net income was $468million, or $1.42 per shares, as compared with a loss in revenue of $164million or 50c per share a year ago.