Patient Zero by Jonathan Maberry

Jacket: "When you have to kill the same terrorist twice in one week, there's either something wrong with your world or something wrong with your skills ... and there's nothing wrong with Joe Ledger's skills. Ledger, a Baltimore detective assigned to a counterterrorism task force, is recruited by the government to lead a new ultrasecret rapid-response group called the Department of Military Science (DMS) to help stop a group of terrorists from releasing a dreadful bioweapon that can turn ordinary people into zombies."

Some whack critics think that this is a story that just happens to have zombies, and even if that is the case, it still reads like a good action film (which it very well could be). The zombie purists may have issue with this, but I really enjoyed it.