The man, born in 1984, arrived in Vietnam on April 17 and was immediately put under 14-day quarantine at a hotel in Hong Bang district, the northern city of Hai Phong.
He tested negative for the coronavirus twice during the mandatory quarantine period, and left for Hanoi on May 1 to stay with his wife and children at Park 10, Hoang Mai district’s Times City.
He visited Vinmec Hospital on May 3 for a commercial COVID-19 test and his test result turned out positive. He is now under treatment at the National Hospital for Tropical Diseases in Hanoi’s Dong Anh district.
Authorities are actively tracing people having close contact with him for COVID-19 test and quarantine to prevent the virus spreading further.
A day earlier, Hanoi reported one case of COVID-19 in Bac Tu Liem District. He was on the same flight from Da Nang to Hanoi last week with two Chinese experts, who had later been found infected with COVID-19./.