Cumulative growth curve of new COVID19 cases and discharged patients in Xuzhou, China. (a) Daily new cases and cumulative sum curve. Continuously increasing trend of confirmed cases was observed. The first 3 cases (#P1, #P2, #P3) reported on Jan 26 were all imported and had Wuhan travel history. (b) Daily discharged cases and cumulative sum curve. On Feb 5, first 3 recovered patients (#P10, #P15, #P31) were discharged from hospital. All the patients were finally discharged and recovered from the disease.