A woman takes a Coronavirus PCR test at a street testing booth in Shanghai. Tuesday’s 7,323 new infections, although very low by international standard, was the highest daily figure since April 30th. Photograph: Alex Plavevski/EPA Covid lockdowns and restrictions have spread to a number of cities in China as case numbers reached their highest level in six months amid reports that the strict zero-Covid policy could be eased. Tuesday’s 7,323 new infections, although very low by international standard, was the highest daily figure since April 30th, with the southern factory hub of Guangzhou accounting for almost a third of new…