54 cases were recorded in HCMC, 14 in Hung Yen, 11 in Bac Giang, eight in Ha Tinh, three in Bac Ninh, two in Hai Phong and one each in Dong Thap and Lang Son.

25 cases in HCMC had close contact with previously confirmed patients, while 20 others are linked to a company in Binh Thanh District. Two others are associated with the Son Ky market in Tan Phu District and one is linked to the Binh Dien market in District 8. Six cases are being contact traced.

Nine cases in the northern province of Hung Yen are linked to a company in Yen My District, while the other five are being contact traced.

All the cases in the northern Bac Giang and the north central Ha Tinh are already contained within quarantine zones and locked down areas.

The cases in the northern province Bac Ninh are linked to existing outbreaks at the Khac Niem industrial park in the eponymous ward and an area of Tien An Ward.

The cases in Hai Phong and the Mekong Delta's Dong Thap are close contact cases.

The case in Lang Son, a 26-year-old woman, is linked to the Quang Chau industrial park in Bac Giang.

More than two months into the new wave, Vietnam has recorded 12,882 local infections in 48 of its 63 cities and provinces. On Tuesday alone, 189 cases have been recorded, including 112 in epicenter HCMC.

Bac Giang has the highest number of infections in the fourth wave, at 5,678, followed by HCMC with 3,548.