The holiday, known before the pandemic as the world's largest annual migration of people, comes amid an escalating diplomatic spat over COVID curbs that saw Beijing introduce transit curbs for South Korean and Japanese nationals on Wednesday. The virus is spreading unchecked in China after Beijing abruptly began dismantling its previously tight curbs in early December following historic protests. Among them, South Korea and Japan have also limited flights and require tests on arrival, with passengers showing up as positive being sent to quarantine. COUNTING DEATHSSome of the governments that announced curbs on travellers from China cited concerns over Beijing's data transparency. Annual spending by Chinese tourists abroad reached $250 billion before the pandemic, with South Korea and Japan among the top shopping destinations.

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