The new patients, aged from 30 to 68, include seven in the central city of Da Nang and three in the neighbouring province of Quang Nam. All of them are linked to the Da Nang Hospital hotspot.
These brought the number of cases connected to the outbreak in Da Nang to 205. The outbreak began with the detection of a 57-year-old male patient on July 25, ending the streak of 99 days of no community infections in Vietnam. It has also resulted in six deaths, all of them with serious underlying health conditions.
The national tally now stands at 652, of which 307 were imported cases and quarantined upon arrival.
Of the total infections, 374 have fully recovered so far. Among the remaining active patients, nine have tested negative for the coronavirus SARS-CoV-2 once and 12 at least twice.
A total of 133,279 people who had close contact with those infected with the virus or returned from pandemic-hit areas are being quarantined nationwide, including 1,258 at hospitals, 20,417 at concentrated quarantine establishments and 111,594 at home.