Chinese cities and factories lock down as outbreak spreads

Seventeen million people in the Chinese tech hub of Shenzhen began their first full day under lockdown Monday, as a key factory making iPhones closed and restrictions spread across Shanghai and other major cities in an effort to extinguish the biggest-ever threat to the nation's zero-tolerance Covid strategy.

source https://medicalxpress.com/news/2022-03-chinese-cities-factories-outbreak.html