A list of venues identified as possible COVID-19 hotspots nationwide has been released by the Ministry of Health.
It is a more contagious strain, he said, adding that it's the sixth strain recorded in Việt Nam.
The Ministry of Health has issued an urgent notice to trace people in close contact with the latest three community transmission cases of COVID-19 in central region with the source of transmission remaining unknown.
The Ministry of Health (MoH) on Thursday called for people to improve their health by reducing their daily intake of salt.
Although Việt Nam has obtained some achievements in improving the quality of its population there still room for improvement, said Đỗ Xuân Tuyên, deputy minister of health.