High-Resolution Data on Human Behavior for Effective COVID-19 Policy-Making - Wuhan City, Hubei Province, China, January 1-February 29, 2020.

Restricting the movement of people within cities is an essential measure for controlling the spread of COVID-19. However, it is difficult to contain intra-street transmission solely through city-wide mobility restriction policies. This can only be accomplished by quarantining communities or buildings with confirmed cases, and conducting mass nucleic acid testing and enforcing strict isolation protocols for close contacts.