A woman undergoes a nucleic acid test at a temporary testing site in east China's Shanghai, May 11, 2022. (Photo: China News Service/Yin Liqin) Eight districts in Shanghai, Fengxian, Jinshan, Chongming, Qingpu, Songjiang, Putuo, and Jiading, have achieved zero COVID-19 community transmission.

Staff members register information for residents at a temporary testing site in east China's Shanghai, May 11, 2022. (Photo: China News Service/Yin Liqin)

Staff members register information for residents at a temporary testing site in east China's Shanghai, May 11, 2022. (Photo: China News Service/Yin Liqin)

A man shows his health code on a mobile phone at a temporary testing site in east China's Shanghai, May 11, 2022. (Photo: China News Service/Yin Liqin)

Staff members disinfect at a temporary testing site in east China's Shanghai, May 11, 2022. (Photo: China News Service/Yin Liqin)