If you have followed this blog for a long time, we looked at how to predict epidemics through OTC drug purchase data. Here is a related idea that might be combined with earlier work. Links to Bioterror detection? See the tag links below.
Using Cell Phone Data to Predict the Next Epidemic Insight Kellogg.
Who you call is linked to where you travel, which dictates how viruses spread.
Based on the research of Pierre Deville, Chaoming Song, Nathan Eagle, Albert-László Barabási and Dashun Wang ... Can big data about whom we call be used to predict how a viral epidemic will spread? .... "