China Covid Spike Preceded by Surge in Cases From Hong Kong
- Imported cases rose before Shenzhen, Shanghai outbreaks
- Residents have been fleeing Hong Kong in record numbers
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China’s worst Covid-19 outbreak since Wuhan was preceded by an influx of imported cases from Hong Kong, showing the risk the city’s virus crisis poses to the mainland.
Just across the border from Hong Kong, tech hub Shenzhen is emerging from a week-long lockdown called to tackle an outbreak of the omicron variant. Shanghai, meanwhile, is seeing its highest new case levels of the pandemic, with half the city locked down for testing after a handful of infections ballooned into more than 2,000 in a matter of weeks.