With record covid cases, China scrambles to plug an immunity gap

With record covid cases, China scrambles to plug an immunity gap

A coronavirus outbreak on the verge of being China’s biggest of the pandemic has exposed a critical flaw in Beijing’s “zero covid” strategy: a vast population without natural immunity. After months with only occasional hot spots in the country, most of its 1.4 billion people have never been exposed to the virus. Chinese authorities, who on Thursday reported a record 31,656 infections, are scrambling to protect the most vulnerable populations. They have launched a more aggressive vaccine drive to boost …