I feel like I’ve read this book before. The story is too familiar. It’s The Stand, it’s World War Z with vampires. It’s about a government experiment that unleashes the apocalypse and then, decades later, how what society is left is dealing with it (and eventually, hopefully, defeating it). This is the first in a trilogy (something I didn’t know when I started it). I will admit here that I read the summaries on Wikipedia and Goodreads to see what happens in the other two books rather than read them myself.