Journal of InfectionVolume 80, Issue 6, June 2020, Pages e39-e40Letter to the EditorStrategies to trace back the origin of COVID-19Author links open overlay panelXu Zhang a b, Xiaoyuan Chen a, Zhipeng Zhang a, Ayan Roy c, Yongyi Shen a b dShow moreShareCitehttps://doi.org/10.1016/j.jinf.2020.03.032Get rights and contentPrevious article in issueNext article in issueRecommended articlesCited by (0)View Abstract© 2020 The British Infection Association. Published by Elsevier Ltd. All rights reserved.