Speaking of zombies and contagion, try World War Z: An Oral History of the Zombie War. Do NOT read it at night is my own suggestion; I got freaked out when I did that. It's written as a report that interviews several survivors about their encounters with zombies in first-person accounts and chronicles from the beginning, when it was just being whispered about, to a full scale world wide infestation. Hard to put down, chilling scenes - esp. as regards choices, and surprisingly realistic in spite of the fantastical premise.
Edit: Murmur, have you ever tried Beyond Good and Evil (game)?--
Edit: Murmur, have you ever tried Beyond Good and Evil (game)?--