Table 1.

Potential application of detailed travel data for planning interventions

Travel data improvement	Intervention strategy
Frequency of travel	Target specific interventions to frequent travellers, such as prophylaxis and protective measures
Time spent during trips	Identify areas where cumulative time at risk is higher and hence greater surveillance for ongoing transmission is granted
Greater geographic detail of destinations	Characterise the main sources of incoming parasites to guide adequate measures to control such foci
Characterising travellers by occupation/reasons for travel	Identify high risk groups to target at borders with specific interventions (e.g. travellers of certain professional occupation are prescribed prophylaxis during travel)
Identifying means of transportation	Guide optimal suite of interventions at borders; this can be enhanced by knowing the age structure of travellers (Fig. 6)