Of the total, 7,306 cases were detected in the community through random testing and test screening.
Official data from the MoH also showed an additional 217 patients died and 1,249 more patients recovered from the disease.
Most of the newly detected cases were in southern localities, with Ho Chi Minh City registering the highest number of infections at 965.
It was followed by Can Tho, Soc Trang, Tay Ninh, Dong Thap, Binh Duong, Ca Mau, and Vinh Long that reported between 500 and 900 cases each.
In the north, Hanoi recorded 737 new cases, with one third diagnosed in the community.
There were also sharp rises in infection numbers in Bac Ninh and Hai Phong provinces that saw 190 and 156 cases detected respectively.
Elsewhere, three out of five Central Highland provinces, namely Dak Lak, Dak Nong and Lam Dong, confirmed more than 100 new infections each.
As of 06pm on December 7 Vietnam has detected 1,337,523 COVID-19 cases since the start of the first outbreak in January 2020, ranking 35th out of 223 countries and territories worldwide.
Of the total, 1,011,656 patients have been discharged from hospital after making a full recovery from the disease.
As many as 26,700 patients have died of the virus, making up 2% of the total number of infections.
Nearly 129 million vaccine doses have been administered nationwide, with 55 million people getting their second shot.