"Patient 1010" is a 52-year-old man in Lien Chieu District. He had close contact with a 46-year-old woman who was later diagnosed with Covid-19.
"Patient 1011" is a 38-year-old woman in Thanh Khe District. She is a vendor at Tan Lap Market, which was locked down from Friday night and disinfected after her results returned positive.
"Patient 1012" is a 69-year-old woman in Thanh Khe and "Patient 1013" a 51-year-old woman in Hai Chau District. Both were vendors at Sieu Thi market, also locked down from Friday night to curb the coronavirus spread.
"Patient 1014" is a 60-year-old man living in Thanh Khe. He is a manager at Lau Den Market.
The five new patients are being treated at Hoa Vang District Field Hospital.
With the latest infections, Vietnam's Covid-19 tally stands at 1,014, with 563 having recovered. The country has recorded 25 deaths thus far.
The total number of community transmissions since late July has hit 374 in Da Nang, making it the biggest Covid-19 hotspot in the country.
Over 104,000 people are in quarantine nationwide, nearly 2,000 in hospital, around 33,000 in quarantine centers, and the rest at home.
Worldwide, over 23 million people have been infected with the virus and the reported death toll has reached 803,800.