Plague Town (Ashley Parker Series #1)

Ashley was just trying to get through a tough day when the world turned upside down. 

A terrifying virus appears, quickly becoming a pandemic that leaves its victims, not dead, but far worse. Attacked by zombies, Ashley discovers that she is a 'Wild-Card' — immune to the virus — and she is recruited to fight back and try to control the outbreak. 

It's Buffy meets the Walking Dead in a rapid-fire zombie adventure!