Any book which has George Romero honored as savior of humanity and talks about his shambling re-animated corpse locked in a government research centre is ahead in my book, abiet a severed and rotting head.
FEED by Mira Grant AKA Seanan McGuire, (you'll never see them in the same room together, is the first book in the NewsFlesh trilogy to which all I can say is: Get cracking woman I want the rest of the story.
The world Ms Grant has built is set 20 years after the rising when an experimental cancer therapy combined with genetically engineered flu virus designed to give immunity to the common cold with one heck of a side effect - It raised the dead.
The amount of thought Ms Grant has given to the sort of world after 20 years of zombies giving rise to infection is impressive. The consideration of the fact that when anyone or decent sized mammal dies it re-animates shows she has spent a lot of time researching the kind of stuff I love to read about: Virus, disease control, emergency response planning and of course the best weapons/ways to take down the dead.
Sarah Palin's America has come to past with Alaska having been surrendered to the zombies, designated a zone 1. From the book:
The protagonists are a brother sister team of news bloggers following the presidential campaign, but its the attention to detail of the world she builds that I most enjoyed. Sure its a world where you survive the car crash only to face a bite from a passenger who died and reanimated, because everyone carries the virus- it just doesn't activate unless you die or get exposed to activated virus. It's also a world where children want to grow up to be leading virologists, the most trusted institution is the CDC and nurses stations are hardpoints.