Cell-phone traces reveal infection-associated behavioral change
- aSimbiosys Lab, Department of Computer Science, Emory University, Atlanta, GA 30322;
- bSchool of Computer Science, Reykjavik University, 101 Reykjavik, Iceland;
- cDepartment of Computer Science, Cornell University, Ithaca, NY 14853;
- dDepartment of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA 02115;
- eDepartment of Veterinary Medicine and Population Health Sciences, University of Bristol, Oakfield Grove, Bristol BS8 2BN, United Kingdom;
- fLandspitali University Hospital, 101 Reykjavik, Iceland;
- gCentre for Health Security and Communicable Disease Control, 101 Reykjavik, Iceland;
- hDepartment of Engineering Mathematics, University of Bristol, Bristol BS8 1TW, United Kingdom;
- iThe Alan Turing Institute, British Library, London NW1 2DB, United Kingdom.
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Edited by Nils Chr. Stenseth, University of Oslo, Oslo, Norway, and approved December 16, 2020 (received for review March 19, 2020)

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Article Information
- Published in issue February 9, 2021.
- Published online January 25, 2021.
Change History
January 26, 2021: The author line has been updated.
Author Information
- Ymir Vigfussona,b,1,2,
- Thorgeir A. Karlssonb,1,
- Derek Onkena,1,
- Congzheng Songc,
- Atli F. Einarssonb,
- Nishant Kishored,
- Rebecca M. Mitchella,
- Ellen Brooks-Pollocke,
- Gudrun Sigmundsdottirf,g, and
- Leon Danonh,i
- aSimbiosys Lab, Department of Computer Science, Emory University, Atlanta, GA 30322;
- bSchool of Computer Science, Reykjavik University, 101 Reykjavik, Iceland;
- cDepartment of Computer Science, Cornell University, Ithaca, NY 14853;
- dDepartment of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA 02115;
- eDepartment of Veterinary Medicine and Population Health Sciences, University of Bristol, Oakfield Grove, Bristol BS8 2BN, United Kingdom;
- fLandspitali University Hospital, 101 Reykjavik, Iceland;
- gCentre for Health Security and Communicable Disease Control, 101 Reykjavik, Iceland;
- hDepartment of Engineering Mathematics, University of Bristol, Bristol BS8 1TW, United Kingdom;
- iThe Alan Turing Institute, British Library, London NW1 2DB, United Kingdom.
Edited by Nils Chr. Stenseth, University of Oslo, Oslo, Norway, and approved December 16, 2020 (received for review March 19, 2020)
Footnotes
↵1Y.V., T.K., and D.O. contributed equally to this work.
- ↵2To whom correspondence may be addressed. Email: ymir.vigfusson{at}emory.edu.
Author contributions: Y.V. and L.D. designed research; Y.V., T.A.K., D.O., C.S., N.K., R.M.M., G.S., and L.D. performed research; Y.V., T.A.K., D.O., and C.S. devised models; G.S. contributed data; Y.V., T.A.K., D.O., C.S., A.F.E., N.K., R.M.M., and L.D. analyzed data; and Y.V., T.A.K., D.O., A.F.E., E.B.-P., and L.D. wrote the paper.
The authors declare no competing interest.
This article is a PNAS Direct Submission.
This article contains supporting information online at https://www.pnas.org/lookup/suppl/doi:10.1073/pnas.2005241118/-/DCSupplemental.
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