Given the country’s track record, the worry is that China may not be sharing data on any signs of evolving strains that could spark fresh outbreaks elsewhere.
The island of Taiwan, which has had enviable success in containing COVID-19, imposed new restrictions in its capital city on Saturday as it battled its worst outbreak since the pandemic began.
Health authorities in England are believed to be especially concerned about one strain out of three Indian variants they have been tracking since last month.
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