Shanghai residents should continue "\\;staying at home"\\; until all results of the city's COVID-19 screening on Monday are released, a senior city government official said on Tuesday.About 80 percent of the testing has been completed on the nucleic acid samples collected during Shanghai's first citywide COVID-19 screening, according to the government.A total of 25.67 million residents received the polymerase chain reaction (PCR) test on Monday. The samples were collected in 2.427 million tubes, 1.925 million of which had been tested as of Tuesday at 8am.