China recently announced that it will manage COVID-19 as a Category B disease and lift quarantines for incoming passengers. However, some countries have imposed restrictions on Chinese travelers.
Shen Ning, an expert in respiratory diseases at Peking University Third Hospital, said surveillance should be strengthened, but there is no need to restrict people’s movement.
New subspecies can emerge easily and mutate with further change, Shen said, but moving populations will be mandatory in the future. She stressed that both China and other countries need to be closely monitored.
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