Shanghai’s Covid Cases Drop as City Prepares to Reopen After Reaching Three-Day Milestone

SINGAPORE—Shanghai marked a third straight day with no community transmissions of Covid-19, a key milestone toward ending an outbreak that has brought China’s financial capital to a grinding halt.

Shanghai on Tuesday reported 777 new locally transmitted cases from a day earlier, compared with more than 25,000 daily infections at the height of the outbreak in mid-April. All the infections were found among 910,000 people in isolation facilities or confined at home—a sign that, for now, the virus’s ability to spread more widely in the city of 25 million people has been curtailed.