Shanghai braves stifling heat for mass COVID tests

STORY: For the third time this summer, Shanghai issued its highest alert for extreme heat as temperatures appeared set to test records in China's most populous city on Thursday.

The city of 25 million residents announced a red alert, indicating temperatures were expected to rise to at least 40 degrees Celsius (104 Fahrenheit) over the next 24 hours.

The hot weather coincided with mass testing for COVID-19 in several districts this week amid minor outbreaks, upping the heat for both residents and Hazmat-suited health workers.

China's "dynamic zero-COVID" policy aims to eradicate all outbreaks promptly, against a global trend of co-existing with the virus.

The world's number two economy already suffered severe damage from sweeping COVID restrictions in the second quarter, affecting global supply chains and international trade.