The invisible universe of the biome became more visible through the work of many 19th century scientific researchers. One of the preeminent adventurers into the microbial world, Louis Pasteur unveiled the essential role micro-organisms play in the healthy functioning of our ecosystems. Famous for the process of pasteurization, Pasteur was also instrumental in breaking new ground in the vaccine and hygiene domains.

Duration - 35:52

YouTube excerpts with comic Orny Adams - ‘I Was Raised on Germs’ & comic George Carlin - ‘Fear of Germs’