As I understand it, there has not been an Increase in cannibalism or crazy people doing terrible things to themselves and others. What appears to be going on is a paper ran a terrible story in Florida. The media realized how much hype this generated. After that many news sources jumped on the bandwagon to increase their profits.
Horrible things like this happen all the time. These stories are just being covered more now. It'll blow over in couple months just like the mass deaths of birds did last year.
But don't worry, some papers and websites will make millions talking about the "Zombie epidemic/Armageddon.