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China may be past the worst of the COVID-19 pandemic, but they aren’t taking any chances.

Workers in Wuhan in service-related jobs would have to take a coronavirus test this week, the government announced, proving they had a clean bill of health before they could leave the city, Reuters reported.

The order will affect workers in security, nursing, education and other fields that come with high exposure to the general public, according to the edict, which came down from the country’s National Health Commission.

The tests will be provided to residents free of charge from the provincial government of Hubei, where Wuhan is the capital.

Wuhan, where the virus originated, was once the worldwide epicenter and spent 70 days on lockdown. China has reported 82,719 total cases with 4,632 deaths, with the overwhelming majority in Wuhan. Many believe the actual totals are much, much higher.