Man in protective gear disinfects a street in Shanghai, this Saturday| Photo: EFE\/EPA\/ALEX PLAVEVSKIAfter nearly two months of closed lines, Shanghai reopened part of the subway system this Sunday (), but the strict lockdown imposed on the city should not end until the next month. Four of the service lines were reopened, in addition to 273 bus lines.According to the Reuters news agency, trains must run at intervals of 20 minutes for a limited number of hours. To travel, passengers need to present significant justifications, in addition to having negative results in PCR tests carried out in the last 48 hours.One A woman interviewed by Reuters, who asked to be identified only by her surname Li, said she was going to visit her father in a hospital 8 km from the train's final stop. "I'm going to the heart hospital, but I don't know if there will be cars or transport when I get to the train station. Maybe I have to walk there," Li said.Since the end of March, Chinese authorities have imposed a lockdown in Shanghai, the country's largest city, with around 05 millions of inhabitants, as part of its zero Covid policy. Fences were erected in several districts to close off streets and entrances to apartment complexes where cases were registered, turning regions of the city into real cages for human beings.