The figure is 36 cases lower than the previous day.
Ho Chi Minh City detected the highest number of infections with 1,059, followed by Binh Duong province with 537 and Dong Nai province with 517.
The national tally now stands at 864,053, including 859,372 cases recorded since the fourth coronavirus wave hit the country in late April.
The Ministry of Health also reported that 3,413 patients nationwide are in serious conditions, with 473 requiring invasive ventilation and 21 on life support (ECMO).
On the same day, the country saw 63 deaths from the disease. The death toll now hits 21,194.
A further 1,340 patients were given the all-clear on the day, taking the total recoveries to 791,844.
By October 16, the country had injected nearly 61.92 million doses of COVID-19 vaccines, with more than 17.84 million people now fully vaccinated.