Dirlikov, E., Zhou, S., Han, L., Li, Z., Hao, L., Millman, A. and Marston, B. 2021. Use of public data to describe COVID-19 contact tracing in Hubei Province and non-Hubei provinces in China between 20 January and 29 February 2020. Western Pacific Surveillance and Response. 12, 3 (Aug. 2021), 6. DOI:https://doi.org/10.5365/wpsar.2021.12.3.808.