A medical worker performs a nucleic acid test on a resident of Rugao, Nantong. [Photo/CFP]

The Nantong Center for Disease Control and Prevention released a notice on Feb 7 regarding people returning to Nantong after the Spring Festival holiday to prevent the spread of COVID-19.

Those arriving in Jiangsu are required to register on the WeChat account (jkntwpt) of the Nantong Municipal Health Commission and report to their residential communities or hotels and companies.

They are also required to take a nucleic acid test within 48 hours after arriving in Nantong and, until a negative result is confirmed, are not allowed to enter public places. Another test is required seven days after they arrive in the city.

Those from medium- and high-risk areas are advised not to visit Nantong. Those who must travel to Nantong will need to report to their residential communities or hotels and companies the moment they arrive in Nantong.

Those who have traveled to cities with medium- and high-risk areas within the last 14 days will need to test negative for the virus within 48 hours before their departure and are required to take a nucleic acid test within 72 hours after their arrival in Nantong.

The center also advises individuals to wear masks while taking public vehicles, wash hands frequently, and avoid touching wildlife.