Al‐Qahtani 2020.

Study characteristics
Study design	Observational screening study
Disease	COVID‐19
Travel‐related control measure(s)	Screening at national borders and quarantine of travellers Entry screening procedures: PCR‐based testing upon arrival and final PCR‐test at the end of the 14‐day period prior to discharge Quarantine procedures: 14‐day mandatory quarantine with PCR‐based testing upon developing symptoms of a respiratory infection Date of implementation: 25 February 2020
Country implementing the measure(s)	Country protected by the measure: Kingdom of Bahrain Country restricted by the measure:  n.r.
Outcome(s)	Cases detected due to the measure Outcome: number of cases identified in index test vs. reference test Follow‐up: 18 days; quarantine and observation period was 14 days
Notes	COI: “The authors have declared that no conflict of interest exists.” Funding: “No funding was received to perform this study.”