Thailand reimposed mandatory coronavirus quarantine measures for foreign tourists on Tuesday, nixing a quarantine-free travel scheme as the kingdom seeks to stifle the spread of the Omicron variant. The pandemic has clobbered the country’s tourism-dominated economy, which last year experienced its worst performance since the 1997 Asian financial crisis. In early November Thailand reopened to fully vaccinated travellers — who had to isolate for a night until they received a negative PCR test — from […]