The number of people each person comes into contact with daily has increased dramatically. Basically the R0 of most diseases is much higher: http://en.wikipedi

The number of people each person comes into contact with daily has increased dramatically. Basically the R0 of most diseases is much higher: http://en.wikipedia.org/wiki/Mathematical_modelling_of_infectious_disease http://en.wikipedia.org/wiki/Mathematical_modelling_of_infec...