Table 2.

Data extracted from included records

Flight characteristics

Flight origin and destination, type of aircraft, date of flight, flight duration, ground delay, number of passengers and crew members on board, HEPA filter function.

Confirmed case on board

Country of residence, nationality, age, sex, date of symptom onset, symptoms/signs during flight, date of diagnosis, sample taken and method of diagnosis, seating characteristics on aircraft, travel companion, disease outcome.

Contact tracing investigation of flight

Country initiating contact tracing, other countries involved, starting date, duration, definition of contacts, methods used to identify and reach contacts, number of contacts, number of successfully traced contacts, contacts followed for 14 days or more, contacts with respiratory symptoms, contacts tested, contacts with positive test results.

Other

Alternative or additional measures taken by authorities, starting date of intervention, duration of intervention, other comments.