There have been so many monumental moments in medical history (try saying that fast) that have helped eradicate disease and reduced the impact of widespread epidemics, that it's impossible to imagine a time before pills, treatments and injections. Now try imagining using Big Data to expand and improve modern medicine. Well, this is exactly what  Data Scientists are doing. This technology is now revolutionising our understanding of the biology of disease which is where our understanding has been lacking.  Exciting times ahead...