Patients numbered 1181 to 1183, a 38-year-old man and two women aged 51 and 42, are residents of Vinh Phuc Province. They had arrived last Saturday at Van Don Airport in Quang Ninh Province on Vietnam Airlines fight VN5062 from Russia.

They were quarantined on arrival in Hung Yen Province. After their test results returned positive for the novel coronavirus on Sunday, they were moved for treatment to the National Hospital for Tropical Diseases 2 in Hanoi.

"Patient 1184," a 20-year-old male student from Ho Chi Minh City, and "Patient 1185," a 56-year-old woman from Ninh Thuan Province, returned from the U.S. on All Nippon Airways flight NH7, transited at Japan's Narita Airport and landed at Cam Ranh Airport in Khanh Hoa Province last Friday on Vietnam Airlines flight VN5311.

They were confirmed positive for the virus Monday and are being treated at the Khanh Hoa Hospital for Tropical Diseases in the central province of Khanh Hoa.

Patients 1186-1188, aged 24, 20 and 31, are women residing in Quang Nam, Hai Duong and Hai Phong. "Patient 1189", a two-year-old girl, and "patient 1190", a 25-year-old man, are residents of Hanoi. Patients 1191 and 1192, aged 37 and 34, are men living in Bac Giang and Quang Ngai provinces.

The seven patients 1186-1192 landed Saturday at Van Don Airport on Vietnam Airlines flight VN5062 from Russia and were quarantined on arrival in Hoa Binh Province. They are being treated at the northern province's general hospital.

With the 12 new patients, Vietnam's Covid-19 tally has risen to 1,192 with 1,065 recoveries and 35 deaths. Two recoveries were announced Monday.

Of the 89 active cases, nine have tested negative at least once, seven twice and six at least three times.

The country has gone 60 days without community transmission of the novel coronavirus. More than 14,000 people are in quarantine nationwide.

The pandemic has infected more than 46.9 million globally to date, and its death toll has crossed 1.2 million.