While, I guess this can be a possibility, I don’t really think zombies are what we have to worry about. I know there isn’t much the human brain can imagine that is not somehow possible, but I just can’t fathom this one. I definitely do not see how they would live for very long. The body is still deteriorating so they would eventually wither away as well.
Honestly, I don’t want to think of it either. If any of the vast number of zombie movies are true about how that will go down, we are screwed. There is no hope for any besides those die hard fans and military personnel. I’ll just take my chances on the end of the world, stock up on necessities, and live my life as normal.