A full lockdown will be imposed on Shanghai's Pudong and Puxi in turn for a new round of citywide nucleic acid testing from Monday morning, the city government announced on Sunday night.From 5am on Monday, a lockdown will first be imposed on Pudong, Punan and adjacent areas (including the Pudong New Area, Fengxian, Jinshan and Chongming districts as well as Pujin Subdistrict and Pujiang Town in Minhang District and Xinbang, Shihudang, Maogang and Yexie towns in suburban Songjiang District) to carry out nucleic acid testing. The lockdown here will be lifted at 5am on April 1.In Puxi, the quarantine measures for the key subdistricts and towns will continue. Other areas in Puxi will be put under lockdown from 3am on April 1 through 3am on April 5 for polymerase chain reaction (PCR) testing.