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China’s capital reported 22 new cases of the coronavirus on Sunday after a mass testing effort that has collected more than two million samples in a race to contain a new outbreak.

The fresh cluster in Beijing has raised fears of a resurgence of the virus in China, which had largely brought the disease under control over recent months.

Dozens of communities have been sealed off in the city to contain the spread, with residents told to avoid non-essential travel and schools closed.

The new infections reported Sunday include a nurseā€”the first health worker to test