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.
manbetx3.0 此轮由Delta变种引发的新冠疫情迅速蔓延,在已接种疫苗人群中造成罕见感染,促使北京有关部门突然实施旅行限制。
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