This is the largest number of COVID-19 patients discharged at a time in Hai Duong, the largest hotspot of the coronavirus transmission at present, in the latest outbreak.
They will have to conduct self-quarantine and health monitoring at home for another 14 days, after which they will undergo testing again.
The COVID-19 hospital No. 1 of Hai Duong, based at the healthcare centre of Chi Linh city, has provided treatment for 293 patients, including nine children and four pregnant woman, since the new outbreak began on January 27.
Also on February 21, Vietnam logged 15 new locally-transmitted COVID-19 cases, all in Hai Duong, according to the National Steering Committee for COVID-19 Prevention and Control.
The new cases raised the national count to 2,383. So far, Vietnam has seen 1,484 locally-transmitted cases, including 791 cases found since January 27.
The number of fatalities remains at 35.
Among patients still undergoing treatment, 69 have tested negative for the virus once, 39 twice and 55 thrice.
At present, a total of 123.942 people who had close contact with confirmed COVID-19 patients or entered Vietnam from pandemic-hit regions are being under quarantine nationwide, including 591 in hospitals, 13,132 in state-designated establishments and 110,219 others at their residences.