Delta started flying nonstop from DTW and SEA to PVG in early December. Delta has decided to pulled all of the PVG trips from the schedule for January. Substandard layover accommodations, food, confined to room, long wait for the required COVID test at PVG. Wait times for testing after block in have reported to be longer than three hours in some cases. Block in to hotel room can be in excess of four to six hours. No idea what will happen if a crew member tests positive for COVID-19? No layovers going forward, but will continue to fly through ICN and do an out and back from Korea to Shanghai.