Of the domestically-transmitted cases, 15 were found in BacGiang province, one in the neighbouring province of Bac Ninh, six in Dien Bienprovince, and three in Hai Duong province.
The latest cases brought the national count of domesticinfections to 3,355. A total of 1,785 cases have been detected since the fourthwave of the pandemic hit the country on April 27.
The number of recoveries and fatalities remained at 2,689and 39, respectively.
Among the patients under treatment, 63 have tested negativefor the coronavirus SARS-CoV-2 once, 34 twice, and 23 thrice.
As many as 129,502 people who came into close contact withCOVID-19 patients or entered Vietnam from pandemic-hit areas are now undermedical monitoring nationwide.
On May 20, 4,897 more people were vaccinated. As of 4 pm onthe day, more than 1 million doses of COVID-19 vaccines had been injected inthe nation./.