The geodynamics of pandemics
One of the challenges of geographical analysis of epidemics, particularly from a forecasting perspective, is the ability to identify the germ of a pandemic in a localized epidemic phenomenon somewhere on the planet, i.e. an epidemic spreading worldwide, a global epidemic. In other words, how can we speak of a pandemic before the end of an epidemic? Can we speak of a pandemic other than by observing a posteriori the extent of an epidemic?