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The Hot Zone
Page 85: the author compares the scale of viruses using analogies to cities and buildings. Create another set of analogies using drops of water in a bathtub. How many polio viruses can fit on the period at the end of a sentence?
A hundred million crystallized polio viruses could cover the period at the end of this sentence.
Source(s)
Preston, Richard (2012-03-14). The Hot Zone: The Terrifying True Story of the Origins of the Ebola Virus (p. 83). Knopf Doubleday Publishing Group. Kindle Edition.