Districts in Shanghai which achieve zero community transmission at first will allow their residents to move around in limited areas, local authorities announced on Wednesday as the city's daily COVID-19 infection numbers maintained their downward trend.A limited number of residents will be allowed to conduct minimal activities in restricted areas in those districts, according to Zhao Dandan, deputy director of the Shanghai Health Commission.Three suburban districts in Shanghai – Jinshan, Chongming and Songjiang – were the first to announce zero community transmission since April 20.