Zhitong Financial APP learned that the concept of travel services rose sharply at the beginning of U. S. stock trading on Tuesday, June 28. As of press time, Tuniu Corp (TOUR.US) is up more than 40%, Trip.com (TCOM.US) is up more than 12%, and Huazhu Hotel (HTHT.US) is up more than 6%. On the face of the news, the National Health Commission released the ninth edition of COVID-19 's prevention and control plan, adjusting the isolation and control time for close contacts and immigrants from "14 days of centralized isolation medical observation + 7 days of home health monitoring" to "7 days of centralized isolation medical observation + 3 days of home health monitoring."