Vietnam is back on high alert for the novel coronavirus after medical officials in the city of Danang detected its first locally transmitted case in three months.
On Friday, the health ministry said a 57-year-old man from Danang, a tourist hot spot, had tested positive, prompting the isolation of 50 people he had come in contact with.
They added that 103 people connected to the patient were tested for the virus but all returned negative.
It was unclear how the man contracted the virus but he had not left Danang for nearly a month. He was initially diagnosed with pneumonia.
The case comes at a time when Vietnam was about to resume international commercial flights.
So far, the country had managed to keep the infections at an impressively low 415 and had reported no locally transmitted infections for 100 days.
It has no reported deaths from the virus.
Trump says no rush for Iran deal, US blockade stays
Iran says ship traffic at Strait of Hormuz will return to pre-war level in 30 days
Netanyahu tells Trump Israel will remain free to act against threats
Turkish riot police enter opposition headquarters to evict ousted leadership
At least 24 killed after powerful bomb explodes in Pakistan's Quetta
