
Xi'an shuts back down as China finds first cases of new Omicron subvariant
CNN
China's northwestern city of Xi'an, home to 13 million people, was partially shut down on Wednesday after it reported the country's first outbreak of a highly transmissible new Omicron subvariant that is fast dominating the United States and Europe.
The city recorded 18 Covid infections from Saturday to Monday, all of which are of the Omicron BA.5.2 subvariant, according to local disease control officials.
BA.5.2 is a sub-lineage of BA.5, which is already dominant in the US and appears to escape antibody responses among both people previously infected with Covid-19 and those who have been fully vaccinated and boosted, according to researchers.

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