So lets say a worldwide outbreak of a zombie like infection occurs, what next? The government would obviously intervene. I assume the most logical thing to do is evacuate the cities, then bomb them, depending on how out of hand things are. If things are too bad in the United States there is a military base basically inside of a mountain. It is protected by a huge door and has tons of firepower inside, to me that sounds like the best place to be. And the soldiers who are stationed in places like that have to feel extremely safe, considering they are in modern day castles and fortresses.
With all of the commotion about Ebola outbreaks lately it needs to be said that occurrences like this are highly unlikely. An outbreak of catastrophic proportions like the Black Plague would be hard to reach with all the knowledge modern medicine has. If your worried a second Plague is afoot know that people in those times threw fecal matter onto roadsides, rarely washed their hands, or bathed entirely for that matter, and rarely washed any tools either, including surgical equipment... but they had no idea thats what caused it. But its basic knowledge that eating that spoiled meat is going to make you sick today and you have modern medical practices to thank for that. So to wrap up, an outbreak is probably not going to happen, but if history repeats itself and we live like pigs, than don't blame me because I told you better!