Dickens 2020.

Study characteristics
Study design	Mathematical modelling study  Description: mathematical model using empirical distributions of transmission parameters to simulate travellers from various countries Measures are assessed through the number of simulated passengers meeting certain conditions
Disease	COVID‐19
Travel‐related control measure(s)	Test‐based screening at national borders, quarantine of travellers and entry restrictions Entry screening procedures:  entry testing of all incoming travellers Quarantine procedures: quarantine of different lengths Entry restrictions: prohibiting entry for those testing positive Date of implementation: 23 July 2020
Country implementing the measure(s)	Country protected by the measure: n.r. Country restricted by the measure: n.r.
Outcome(s)	Cases avoided due to the measure Outcome 1: number of imported cases Outcome 2: number of cases in community Follow‐up: n.r.
Notes	COI: “None declared.” Funding: “The work was supported by funding from Singapore’s National Medical Research Council through grants COVID19RF‐004 and NMRC/CG/C026/2017_NUHS.”