Odendaal 2020.

Study characteristics
Study design	Mathematical modelling study  Description: unspecified Data‐driven approach. The model uses observed data to fit an exponential curve and project the cumulative number of infected into the future. Asymptomatic infections are assumed to become contagious some time after the moment of infection from exposure and the average person who has been infected will show symptoms after the average incubation period.
Disease	COVID‐19
Travel‐related control measure(s)	Border closure Date of implementation: 31 January 2020
Country implementing the measure(s)	Country protected by the measure: USA Country restricted by the measure: China
Outcome(s)	Shift in epidemic development  Outcome: delay of community transmission Follow‐up: 3 months
Notes	COI: n.r. Funding: n.r.