Coronavirus: Shanghai’s Covid-19 cases drop to lowest in a month, but officials say pandemic still at ‘critical stage’

• The total number of infections reported on Saturday was the lowest since April 5, while symptomatic cases plummeted about 77 per cent to 1,249
• Local officials said the standstill order issued April 15 would be maintained until the number of new infections in ‘unguarded zones’ reaches zero