We thank TransLink for providing data on transportation and Bluedot for descriptive summary statistics on mobile-phone mobility patterns. The research and analysis are based on data from TransLink and the opinions expressed do not represent the views of TransLink. The opinions and conclusions expressed also do not represent the views of Bluedot. We thank J.A. Otte for providing details on testing-criteria changes in BC and C.L. Cahill for assistance simulation testing the model. We thank J.A. Otte and L.A. Rogers for insightful comments on an earlier version of this manuscript. We thank A. Lustig and M. Plank for fitting the delay distribution to New Zealand case reporting data.