No offence man, but you're making a lot of threads, which is fine, but can you add a bit more content to the OP? And perhaps use more credible sources?
Anyways, to the topic at hand, I'd believe it if they had pictures of the bite wound, in a place he can't bite, and to make sure that no other person bit him.
If none of those are not provided, I'm going to lean to it being fake.