Shanghai sweats over small, but stubborn COVID outbreak already hampering economy

Anxiety levels rose along with temperatures in Shanghai on Wednesday, as medical workers sweated beneath their hazmat suits while administering compulsory mass testing for COVID-19 in a city that recently emerged from a painful two-month lockdown. China's commercial hub is battling an outbreak that has seen dozens of new infections recorded daily for the past week, and though the numbers are relatively low it has unnerved many among the city's 25 million people, after their ordeal in April and May.