Since the start of the pandemic, different countries and territories have taken vastly different approaches toward preventing the spread of the coronavirus, with countries like Australia and China implementing some of the tightest border restrictions. China has banned most foreign visitors, from tourists to students, from entering mainland China. Those few who are allowed to enter, as well as returning Chinese citizens, must undergo at least 14 days of strict quarantine, which can be extended to up to 28 days by local authorities, often followed by another lengthy period of home observation.

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