The three imported cases were quarantined upon arrival in Tay Ninh and Quang Nam provinces.
Among the 59 domestic infections, 30 were found in Ho Chi Minh City, 19 in Bac Giang, six in Bac Ninh, three in Ha Tinh, and one in Hoa Binh. Of them, 46 were detected in quarantine or blocked areas.
So far, the country has documented 12,414 infections.
As many as 80 patients were given the all-clear on June 18, raising the total of recoveries to 4,733 while the death toll was 62.
Among active patients under treatment at hospitals, 415 have tested negative for SARS-CoV-2 once, 100 twice and 71 thrice.
Twenty-five provinces have gone through 14 days without detecting new cases. Since April 29, over 5.14 million people across the country have received COVID-19 testing.
