1. Here's what trump's coronavirus emergency declaration does;Alvarez,2020
2. Data-based analysis, modelling and forecasting of the covid-19 outbreak;Anastassopoulou;PloS One,2020
3. Estimation of covid-2019 burden and potential for international dissemination of infection from Iran;Ashleigh,2020
4. Estimation of covid-19 outbreak size in Italy. The Lancet;Ashleigh;Infectious Diseases,2020
5. Epidemiology and transmission of covid-19 in 391 cases and 1286 of their close contacts in shenzhen, China: A retrospective cohort study;Bi,2020