Hong Kong has ordered people who were in some 57 locations visited by close contacts of a person later confirmed with Omicron to undergo compulsory testing as part of a stringent response to the discovery of the variant in the community.The territory is sticking to the COVID-zero policy that China has maintained since suppressing the outbreak in Wuhan, the central city where the virus first emerged in late 2019.Omicron is fuelling record daily cases of coronavirus in the United States as well as countries in Europe and in Australia.
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