The Ministry of Health logged 10,011 local coronavirus cases in Vietnam on Sunday, along with 11,477 discharged patients and 184 deaths.
The new cases were reported in 35 provinces and cities, the health ministry said.
The ministry had registered 9,682 locally-infected patients on Saturday.
More than 5,300 of the latest infections were found in the community, with the remaining detected in sectioned-off areas or centralized quarantine facilities.
Ho Chi Minh City documented 5,121 local cases, up by 1,075 patients from yesterday; Binh Duong Province 3,332, down by 297; Dong Nai Province 746; Long An Province 171; Kien Giang Province 99; An Giang Province 81; Can Tho City 52; Da Nang eight; and Hanoi two.
Vietnam has confirmed 752,185 community transmissions in 62 out of its 63 provinces and cities since the fourth – and worst – virus wave emerged in the country on April 27.
Ho Chi Minh City tops the list with 371,660 patients, followed by Binh Duong Province with 200,196, Dong Nai Province with 45,667, Long An Province with 31,789, Tien Giang Province with 13,787, Dong Thap Province with 8,211, Khanh Hoa Province with 7,683, Da Nang with 4,910, Hanoi with 4,201, and Ba Ria-Vung Tau Province with 4,121.
By comparison, Vietnam detected a combined 1,570 locally-transmitted infections in the previous three waves.
The health ministry announced 11,477 recoveries on Sunday, taking the total to 527,926.
The toll has ascended to 18,584 deaths after the ministry documented 184 fatalities on the same day, including 131 in Ho Chi Minh City and 26 in Binh Duong Province.
Vietnam has registered 756,689 patients since the COVID-19 pandemic first hit it early last year.
Health workers have administered around 38.3 million vaccine doses, including 787,838 shots on Saturday, since vaccination was rolled out on March 8.
Over 7.9 million people have been fully vaccinated.
Health authorities aim to immunize at least two-thirds of a population of nearly 98 million people against COVID-19 by the first quarter of next year.