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Hong Kong health authorities have started a city-wide search for the contacts of a Covid-19 patient and ordered a Royal Caribbean "cruise to nowhere" ship to return to port early.
On December 31, a streak of three months without community cases ended with the first local transmission of the new Omicron variant.
Since then, authorities have scrambled to track down and test hundreds of people who had been in contact with a handful of Omicron patients.
Read more from Reuters here.
