P Yi, X Yang, C Ding, Y Chen, K Xu, Q Ni, H Zhao… - BMC Infectious …, 2020 - Springer
… , a new type of coronavirus disease (COVID-19) occurred in … respiratory syndrome coronavirus
(SARS-CoV), COVID-19 was … 1 pm 19 February 2020, a total of 74,280 cases of COVID-19 …