Shanghai Outbreak Swells as First Sub-Variant Case Detected

(Bloomberg) — Covid-19 cases in Shanghai continued to climb as parts of China’s financial hub face more rounds of mass testing, with new subvariants providing a constant challenge to the country’s zero-tolerance approach to the virus.

The city recorded 69 new infections for Sunday, the most since late May and up from 57 the day before. Cases have increased abruptly after a period of little to no trace of the virus, where officials declared victory over Covid and praised their handling of a crisis that left China’s most global city locked down for two months in May and June.