Clinical features and treatments:
The main clinical features developed including fever, high temperate, dry cough, weakness, many cases had expectorations, shortness of breath, diarrhea, nausea and vomit; Pharyngalgia and muscular soreness were not obvious; Catarrhal symptoms are rare; the severe and critical patients had varying degrees of shortness of breath and difficulty in breathing (Table 1 ). 1 asymptomatic case without any symptoms was found. 51 (79.69%) were classified as light, while 11 (17.19%) were severe and critical were 2 (3.12%). The mean of latency of were 3.4 days range from 1-14. The maximum temperatures were recorded when hospitalized. It was thought to be fever if the ear temperate was above 37.3℃. Most cases (59, 92.19%) had fever, average with 6.9 days, most fevers (38/55, 69.1%) were above 38℃, the average temperature was 38.1℃. 5 cases had no fever, just a little unobvious symptom. More than half (39, 60.9%) had Weakness, few (5, 7.8%) had Muscular soreness. Respiratory symptoms were seen in 45 (70.3%) cases, as dry Cough 41 (64.1%), expectoration 23 (35.9%), shortness of breath 18 (28.1%), pharyngalgia 10 (15.6%). 28 (43.8%) cases had gastrointestinal symptoms, 14 (21.9%) Diarrhea, 13 (20.3%) Nausea, 8 (12.5%) Vomit. And there were 15 (23.4%) secondary infection cases. The basic disease including Hypertension (20) and Chronic liver disease (7). No Smoke of all.