The rest of the cases were registered in four other localities: Tien Giang (16), Phu Yen (eight), Hung Yen (six), and Vinh Long (one).

All the new cases in HCMC were recorded in quarantine zones and areas that have been isolated.

The cases in the Mekong Delta's Tien Giang had contact with previously confirmed Covid-19 patients.

All the cases in the central Phu Yen Province and the northern Hung Yen Province also had contracted the virus after coming into contact with Covid-19 patients.

The case in the Mekong Delta's Vinh Long is a woman who returned from HCMC.

Over two months into the new Covid wave, the fourth one and the most challenging Vietnam has faced yet, the nation has recorded 13,684 domestic cases in 50 of its 63 cities and provinces.

Bac Giang Province and HCMC account for most infections, with 5,703 and 3,998 cases.

The country has vaccinated more than 3.7 million people against Covid-19, including 193,041 who have got two shots.