The 49-year-old Russian expert arrived at Can Tho airport on September 26 on flight QH 9495 from Russia, and he was quarantined in the Mekong Delta city of Can Tho right upon his arrival.
The patient is now quarantined and treated at the Can Tho Tuberculosis and Lung Hospital.
Previously, 17 cases positive for coronavirus SARS-CoV-2 were detected on the same flight, and they are being quarantined in the southern province of Bac Lieu.
The total number of COVID-19 cases rose to 1,095, including 691domestically-infected cases. The death toll remained at 35.
Among the positive cases, 1,010 have been given the all-clear from the virus.
There are 15,491 people who had close contact with COVID-19 patients or entered Vietnam from pandemic-hit areas are being quarantined across the country.
