Epidemic source:
In 64 cases, median age was 44, 58 (90.63%) cases were ranged from 20-60, only 5 (7.81%) were above 60; a 26-months infant was found. In gender, 36(56.25%) were male and 28(43.75%) were female. There were 62 (98.44%) had the clear contact history, 33 patients who had been to Wuhan in last 14 days, were classified as Generation 1 (Gen.1); 25 closely contacted the Gen.1,as Gen.2; 4 were family members of Gen.2, as Gen.3; 2 lost contact history. Importantly, 16 cases were reported from a same place imported by one Gen.1. (Table 1 ,Figure 1 )