Funding Information
This paper was supported by the following grants:
http://dx.doi.org/10.13039/100000913James S. McDonnell Foundation Postdoctoral fellowship in dynamic and multiscale systems to Katelyn Gostic.
http://dx.doi.org/10.13039/100004440Wellcome 206250/Z/17/Z to Adam J Kucharski.
http://dx.doi.org/10.13039/501100002322Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Science without borders fellowship to Ana CR Gomez.
http://dx.doi.org/10.13039/100000001National Science Foundation DEB-1557022 to James O Lloyd-Smith.
http://dx.doi.org/10.13039/100000185Defense Advanced Research Projects Agency PREEMPT D18AC00031 to James O Lloyd-Smith.
http://dx.doi.org/10.13039/100013316Strategic Environmental Research and Development Program RC-2635 to Ana C R Gomez, Riley O Mummah, James O Lloyd-Smith.

Acknowledgements
We are grateful to Miaka McClenahan and Pieter de Ganon for translation assistance. We thank the Cobey lab for helpful comments.

Additional information
Competing interests
No competing interests declared.
Author contributions
Conceptualization, Resources, Data curation, Software, Formal analysis, Funding acquisition, Investigation, Visualization, Methodology, Writing - original draft, Project administration, Writing - review and editing.
Resources, Software, Validation, Visualization, Methodology, Project administration, Writing - review and editing.
Data curation, Project administration, Writing - review and editing.
Conceptualization, Visualization, Writing - original draft, Project administration.
Conceptualization, Supervision, Funding acquisition, Investigation, Methodology, Project administration, Writing - review and editing, Writing - original draft.

Additional files
Transparent reporting form

Data availability
There are no data inputs into our model. All parameter input values are specified in Table 1, or in the manuscript text. We provide a link to the github repository containing all code necessary to run the analyses and generate figures (https://github.com/kgostic/traveller_screening/releases/tag/v2.1, copy archived at https://github.com/elifesciences-publications/traveller_screening).