Fourth wave scare: Shanghai now using metal barriers to block off streets to control Covid-19 spread

In the city’s financial district, Pudong, the barriers either thin metal sheets or mesh fences were erected in several neighbourhoods under a local government directive, according to Caixin, a Chinese business media outlet.In the city’s financial district, Pudong, the barriers either thin metal sheets or mesh fences were erected in several neighbourhoods under a local government directive, according to Caixin, a Chinese business media outlet.