From August 22 to 24, according to arrangements of Epidemic Prevention and Control Headquarter of Yichang as well as the requirements of normalized precise control of the health department, there were 591 samples from environmental biology and practitioners (557 environmental biological samples, 34 practitioners samples), including 3 supermarkets, 4 markets of agricultural products, 3 comprehensive hospitals, 2 community’s health service centers (in towns and townships), 2 stations, 3 public transport means, 6 express sites, 4 sewage disposal plants, 2 public toilets, 6 refrigerated storage seafood and freshwater products conducted nucleic acid test, with no positive result.

　　Since June 13, samples from supermarkets, markets of agricultural products and others in Yichang have been testing for 73 days, with more attention given on the test of environmental biological samples from cold storage, cold-chain logistics and cold-chain food.

　　Up to 24 of August, total tested environmental biology samples and the number of personnel samples have reached 19,426 and 3,573 respectively, with no positive result. Those samples include 215 from related sites of refrigerated storage and cold-chain logistics, 87 department of comprehensive medical institutions, 53 community’s health service centers, 170markets of agricultural products, 283 supermarkets, 201 restaurants, 59 public transport means, 36 stations, 46 public toilets, 41sewage disposal plants, 46 express delivery sites.