1 Department of Biostatistics, Yale School of Public Health, New Haven, CT 06510; Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06511;
2 Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT 06510.
3 Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06511; Center for Infectious Disease Modeling and Analysis, Yale School of Public Health, New Haven, CT 06510 alison.galvani@yale.edu.