[Analysis on epidemic situation and spatiotemporal changes of COVID-19 in Anhui].

Liu, M; Xu, H L; Yuan, M; Liu, Z R; Wu, X Y; Zhang, Y; Ma, L Y; Gong, L; Gan, H; Zong, W W; Tao, S M; Liu, Q; Du, Y N; Tao, F B

We used the epidemic data of COVID-19 published on the official website of the municipal health commission in Anhui province. We mapped the spatiotemporal changes of confirmed cases, fitted the epidemic situation by the population growth curve at different stages and took statistical description and analysis of the epidemic situation in Anhui province. It was found that the cumulative incidence of COVID-19 was 156/100 000 by February 18, 2020 and the trend of COVID-19 epidemic declined after February 7, changing from J curve to S curve. The actual number of new cases began to decrease from February 2 to February 4 due to the time of case report and actual onset delayed by 3 to 5 days.