A fast-spreading outbreak of the Delta coronavirus variant in China has caused rare infections among the country’s vaccinated individuals, spurring authorities in Beijing to impose sudden travel restrictions.
中國此輪由Delta變種引發的新冠疫情迅速蔓延,在已接種疫苗人群中造成罕見感染,促使北京有關部門突然實施旅行限制。
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