No joke. The Centers for Disease Control and Prevention posted a blog post with a list of recommendations on how to survive a massive invasion of the flesh-eating zombie.

The original post was up Monday, May 16 on CDC's Public Health Matters Blog.

There are all kinds of emergencies out there that we can prepare for. Take a zombie apocalypse for example, the post reads. That's right, I said z-o-m-b-i-e a-p-o-c-a-l-y-p-s-e. You may laugh now, but when it happens you'll be happy you read this, and hey, maybe you'll even learn a thing or two about how to prepare for a real emergency.

After giving a brief introduction to zombies, the blog continues In such a scenario zombies would take over entire countries, roaming city streets eating anything living that got in their way, the post reads.

Of course, the ulterior motive for such a posting is more serious.

So what do you need to do before zombies ... or hurricanes or pandemics for example, actually happen?

Apprently, the idea for the post arose during a brainstorming session on how to interest more Americans in hurricane preparedness, according to Dave Daigle, a CDC spokesman and self-described member of the Zombie Task Force.

I worry we try the same thing every year and I didn't know how many people we were actually engaging, Daigle said. Let's face it -- preparedness and public health are not sexy topics.

CDC is hoping that their advice inspires people to make basic preparations for a real emergency. This includes things like water, food, and other supplies to get you through the first couple of days before you can locate a zombie-free camp (or in the event of a natural disaster, it will buy you some time until you are able to make your way to an evacuation shelter or utility lines are restored), the post said.

CDC's blog post received over 30,000 and crashed the server. Daigle's idea is working - zombies apparently garner attention.