Among the new patients, 7 are female employees of Truong Sinh Ltd., Co and work at the canteen of Hanoi-based Bach Mai Hospital.

Another patient is a 41-year-old man in Hanoi’s outskirts district of Thanh Oai who visited the centre for tropical diseases of Bach Mai Hospital on March 12 and tested positive for the virus on Sunday.

The remainder is a 35-year-old Vietnamese woman who boarded flight TK162 from Greece after transiting in Turkey to Tan Son Nhat International Airport in Ho Chi Minh city on March 17.

Upon entry, she was sent to a concentrated quarantine facility in Nha Be district in the city. Her samples, sent to the city's Hospital for Tropical Diseases on March 27, were confirmed positive.