A propaganda poster preventing the spread of Covid-19 is viewed on a wall for a man smokes a cigarette along a road in Hanoi on April 29, 2020.Manan Vatsyayana | AFP | Getty ImagesVietnam, formerly praised for the success in containing the coronavirus outbreak, is currently fighting a resurgence in cases and has warned that the illness could spread wider throughout the state.The Southeast Asian country — that shares a border with China, where the virus first appeared — hadn’t listed any locally transmitted cases for over three months prior to a 57-year old resident of this central town of coastal Danang was tested positive for the coronavirus disease on Saturday, said the Vietnamese government.The patient had no travel history or globally within the last month, the authorities said. However, Reuters reported that tens of thousands of national vacationers are on holiday in the coastal city.Authorities are getting ready to evacuate the approximately 80,000 vacationers in Danang. Prime Minister Nguyen Xuan Phuc cautioned on Wednesday that each state and town in the nation is in danger of infections, reported Reuters, citing state broadcaster Vietnam Television.To be apparent, the 450 total confirmed cases reported in Vietnam at Wednesday remain comparatively small for a country with a population of about 97 million. The nation also hasn’t listed any deaths concerning the coronavirus.But the renewed outbreak in Vietnam underscores the problems governments face in comprising the fast-spreading disease. That is true even for a nation that was globally hailed as a possible model for other developing nations in handling the coronavirus outbreak.The Vietnamese government’s internet paper VGP stated on Monday that preliminary epidemiological investigations revealed a number of the new cases found in Danang were connected to three associations in town. Genome analysis also demonstrated that “that is a brand new sort of Covid-19, which can be more contagious,” explained Acting Health Minister Nguyen Thanh Long.Authorities have tightened containment steps in Danang, like stepping up contact tracing, restricting crowd sizes and stopping non-essential services. Flights to and out of town also have been briefly suspended.On Wednesday, Vietnam reported new cases from its two largest cities — Hanoi and Ho Chi Minh City — that were attributed to individuals who visited Danang at the past couple of weeks.Reuters, citing city police, reported around 18,000 individuals who visited Danang returned to Ho Chi Minh City and yet another 21,000 went home to Hanoi.Authorities at Hanoi, the capital of Vietnam, said Thursday they will run mass testing of their 21,000 inhabitants who lately returned in Danang, reported Reuters. The town also arranged pubs to be closed and prohibited big collecting, according to the report.Resurgence in AsiaVietnam isn’t the only Asian nation or land facing a new jump in the amount of supported Covid-19 cases.Hong Kong’s chief, Carrie Lam, on Wednesday warned that the town is on the cusp of a large scale outbreak that may overload its health-care centers and price lives. Hong Kong, a semi-autonomous Chinese land, had managed to contain its outbreak — that enabled it to prevent a lockdown.But that the Hong Kong government enforced stricter steps that this week.Taiwan, also viewed as victory story in containing the virus, said on Tuesday it was exploring its initial potential local transmitted instance in over a month, reported Reuters. A Thai migrant employee — that arrived on the island in January — tested positive for the disorder only days after returning to Thailand, according to the report.— CNBC’s Abigail Ng contributed to the report