Governments reinstate travel curbs as Omicron variant casts a pall over whole world Heidi Huang, a Chinese businesswoman, said she was grateful for Thailand's reopening program Test and Go after she returned from a recent business trip to Dubai. Instead of spending several days in quarantine, the 23-year-old from Zhejiang province said she could move about freely in Bangkok after she received her negative COVID-19 test result, the day after she arrived on Dec 6. Huang is one of the fortu...