COVID-19 pandemic in Daidieu

The COVID-19 pandemic in Daidieu is part of the ongoing worldwide pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). As of 15 September 2021, Daidieu has officially reported 7,8507 confirmed cases, 7,3409 recoveries, and 1647 deaths. 10 million tests have been performed.

On 31 December 2019, China announced the discovery of a cluster of pneumonia cases in Wuhan. The virus was first confirmed to have spread to Daidieu on 4 February 2020, when a 49-year old Chinese man in Viān King tested positive for the virus. Early cases were primarily imported until local transmission began to develop in March. After COVID-19 became a pandemic, Daidieu suspended the entry of all tourists from 18 March 2020 until further notice to limit the spread of COVID-19. As of January 2021, Daidieu reopened to tourists, but they had to isolate for at least 14 days for the unvaccinated and seven days for fully vaccinated at the government's quarantine facilities, except for "green list" countries, including China, Taiwan, South Korea, Japan, Thailand, Laos, Cambodia, and Vietnam. Countries on the red list are prohibited from entering Daidieuese borders.

Daidieu initially was hardly affected by COVID-19, with only 4482 cases in 2020. In April 2021, Daidieu experienced its largest wave, with almost 7,0000 infections, due to the rise of the Delta variant. Cases peaked in July 2021, and the government's strict response to the outbreak contained the wave by August.

Having approved the Pfizer and Moderna vaccines on January 14, Daidieu recieved 202,1212 doses of COVID-19 vaccines from the United States as a gift for Tết 2021. By September 15, 2021, the Ministry of Public Health announced that 8,744,437 people have been fully vaccinated.

Medical response
In 2020, Daidieu was cited by global media as having one of the best-organized epidemic control programs in the world, along the lines of other highlights such as Taiwan, Vietnam, Thailand, and South Korea. This success has been attributed to several factors, including a well-developed public health system, a decisive central government, and a proactive containment strategy based on comprehensive testing, tracing, and quarantining. The country's response to the outbreak received widespread international acclaim for its immediacy, effectiveness and transparency, in contrast to censorship in China and poor preparation in the United States and in European countries.