The Vietnamese Ministry of Health confirmed two imported coronavirus patients on Sunday, both isolated for treatment in the central beach city of Da Nang.
The two patients were quarantined upon entry into Vietnam, the health ministry said.
The first patient is a 21-year-old Vietnamese man whose registered address is in the Central Highlands province of Lam Dong.
On November 28, he touched down in Da Nang from Japan aboard flight VN319 and was immediately sent to quarantine as per protocols.
His third test returned positive for COVID-19 on Saturday. He is in treatment at the Da Nang Hospital for Lung Diseases.
Another patient had been detected on his flight earlier. This case is also isolated for treatment in Da Nang.
The remaining case announced on Sunday is a 19-year-old Vietnamese girl who hails from Da Nang.
She was quarantined upon landing in the beach city from South Korea on board flight VN431 on December 1.
Her second test came back positive for the new coronavirus on Saturday.
She is also isolated for treatment at the Da Nang Hospital for Lung Diseases.
Another case had been documented on her flight before, who is being treated in the coastal city as well.
Vietnam has registered 1,397 coronavirus infections as of Sunday night, with 1,241 recoveries and 35 virus-related deaths, according to the health ministry’s statistics.
The Southeast Asian country has recorded zero local cases for 12 successive days, after Ho Chi Minh City had found transmission in the community early this month.
Although most regular inbound commercial flights are now suspended, charter planes to Vietnam have been arranged to bring in experts, skilled workers, and diplomats, and to repatriate Vietnamese citizens stranded in other nations and territories due to the pandemic.
The Vietnamese health ministry said about 72 million people have been diagnosed with COVID-19 around the world.