text: On the evening of May 15, the Steering Committee for Covid - 19 Prevention and Control of Da Nang City said the city is deploying sampling for random widespread testing according to households to assess the risk in the city?
classes:  No, extensive specimen collection helps health authorities quickly separate and track down patients according to patient schedules to limit community spread.  Besides, extensive specimen collection helps health authorities quickly separate and track down patients according to patient schedules to limit community spread.  Yes, extensive specimen collection helps health authorities quickly separate and track down patients according to patient schedules to limit community spread.  Meanwhile, extensive specimen collection helps health authorities quickly separate and track down patients according to patient schedules to limit community spread.