Government has limited the random sampling to 2 percent of the travellers as per the latest rules, apart from the mandatory RT-PCR test of all passengers from 'at risk' countries.
Vietnam has detected 3,635 locally acquired coronavirus cases and 11 imported cases in 50 cities and provinces across the country over the past 24 hours, an increase of 612 cases compared to the previous day, the Ministry of Health said in its coronavirus update on October 20.