At the beginning of “Act I.”, a historical outline of the virus pre-apocalypse is given. In 1995, researchers found that they could use "viruses linked to healthy respiratory cells to destroy and replace diseased cells in patients afflicted with lung cancer.” It was highly effective. Two years later, humans found a way to manipulate this virus in a way that it could decimate any threat within the human body-- "tumors, thickening arteries, decaying bones." The virus would "consume, digest and" transform the byproducts into useful energy for the virus. One would think there is nothing but hope for the future. Protosevich then shuffles us to a typical day for Neville, proceeding with his daily rituals of exercising, gardening and watching the
