China continues to upgrade prevention and control measures in multiple provinces and cities to contain the latest Covid-19 resurgence.
Most previous Covid-19 outbreaks didn't spread far beyond a city or province. But this time, Covid-19 cases have been confirmed in more than 35 cities in 17 of China's 33 provinces and regions.
China's national health commission confirmed 71 new locally transmitted Covid-19 cases on Tuesday.
While the total is still in the hundreds, they are far more widespread than anything China has dealt with since the initial outbreak that devastated Wuhan in early 2020.
CCTV reported citywide virus testing began July 29.
China has not eliminated but largely curbed Covid-19 domestically with quick lockdowns and mass testing to isolate infected people whenever new cases pop up.