Paranormal/ Dystopian teen fiction by Julie Kagawa. The vampires rule the cities 60 years, post plague. Humans receive some protection from rabid zombie-like creatures, if they register, and donate blood to the vampires regularly. Food and other resources are tightly distributed. Allie is an Unregistered human. Instead of donating to the vampires, she lives on the edge of the city, foraging for resources. Until the unthinkable happens. Pretty good book.
