Job Recruitment Website - Ranking of immigration countries - When did the United States, Canada and Singapore issue epidemic prevention and control respectively?

When did the United States, Canada and Singapore issue epidemic prevention and control respectively?

On February 9, 65438, the United States began to gradually liberalize with the vaccination rate of 34%. On March 2, 2022, the White House announced the rescue of the virus, and the whole epidemic prevention was fully liberalized. On April 2, 2022, Canada's entry policy was implemented. After entering the country, there is no need for pre-trip inspection and isolation in COVID-19, and it is completely liberalized.