Vietnam’s Ministry of Health announced 12 imported COVID-19 cases from the U.S. and Russia on Monday.
Patients 1,181, 1,182, and 1,183 are Vietnamese who returned from Russia on Saturday.
They landed at Van Don International Airport in northern Quang Ninh Province on board flight VN5062 and was sent to a centralized quarantine center operated by the military in northern Hung Yen Province upon entry.
The Hung Yen Center for Disease Control confirmed their coronavirus infection on Sunday.
The three are being isolated for treatment at the Dong Anh branch of the National Hospital for Tropical Diseases in Hanoi.
Patients 1,184 and 1,185 are Vietnamese returnees from the U.S.
They left the U.S. on October 29 aboard flight NH7 and caught a connecting flight in Japan before touching down on board flight VN5311 at Cam Ranh airport in Khanh Hoa Province, located in south-central Vietnam, on October 30.
They were quarantined in the provincial capital of Nha Trang upon landing.
The Pasteur Institute in Nha Trang diagnosed them with COVID-19 on Monday.
The two are in treatment at the Khanh Hoa Hospital for Tropical Diseases.
The remaining seven patients, also Vietnamese, entered Vietnam from Russia on Saturday.
They were transferred to a military-run collective quarantine center in northern Hoa Binh Province when landing at the Van Don airport on board flight VN5062.
Their tests returned positive at the Hoa Binh Center for Disease Control on Monday.
The seven are treated at Hoa Binh General Hospital.
The health ministry also announced two recoveries on Monday.
Vietnam has confirmed 1,192 coronavirus patients to date, with 1,065 having recovered and 35 virus-related deaths.
The Southeast Asian country has detected zero community cases for two months.
Vietnam began denying entry to foreign nationals on March 22 but the government allows foreign experts, skilled workers, investors, and diplomats to enter the country on a case-by-case basis, subject to mandatory quarantine.
Though international commercial flights are now suspended, charter planes to the country 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.
Vietnam currently charges international arrivals for quarantine.
It provided the quarantine service for free in the past.