Using the Google Earth plugin I've created a timeline of the H1N1 Swine Flu outbreak. The data comes from the H1N1 Swine Flu My Map.
Due to the inaccuracy of the data this map should be seen purely as an experiment. For example, the timestamps on the data seems to suggest that the outbreak spread from the USA to Mexico rather than the other way around. However the timeline does give a rough idea of how the outbreak seems to be spreading.
View the H1N1 Swine Flu Timeline.