Because I've been reading Matheson's 1954 novel I am Legend, I've also been rewatching the films made from it; as usual, the more times you watch, the more details you notice that you didn't notice before. My most recent rerun of the 2007 I am Legend (with Will Smith) film found me picking up more detail about Bob Marley and his immortal music.
My first thought was an obvious one--that the Marley 'Best Of' compilation that Neville claims is "the best album ever made" is, of course, Legend. [This compilation has been superseded since the film was made, but it's still an outstanding compilation.] Then there is Neville's fascinating statement that he, as a virologist, associates with Marley because Marley believed reggae is a music and culture that can spread goodness, peace and righteous health through the world like a positive virus.
This thinking got me listening to Marley again, and also to my favourite reggae artist, Cocoa Tea. I love Tea's vocals. Anyway, on Tea's One Up album (1993) he actually has a song called Virus which includes the lines: 'Reggae is like a virus/ some say it's outrageous/ it's definitely contagious/ it's spreading all over the world'. Apparently, what it's spreading is understanding and harmony.