So as we saw in last night's The Walking Dead, there's this new illness going around that nobody knows for sure. Seeing it, I came up with this little theory. Has anybody else thought of this as well? Who knows, but I'll find out hopefully. Then it won't be just mine.
We see in the beginning that somebody is feeding rats which we later see a group of dead, eaten rats when the walkers are about to throw down the fence. Seeing rats, I immediately thought "black plague". I think something among the lines of the black plague is spreading. Perhaps some mutated fleas that rats carry are going around, biting those living in the prison (which we can't say is 100% sanitary regardless of the fact that they have access to clean water to bathe). Now for the pigs, I can't say whether or not they were infected. Sure we saw Violet the pig who didn't look too good, but that could have been just something not zombie related. Plus, I don't think we've seen animals turn. Can they? I don't know.
Anyways, yeah, I think it's something that's carried by the rats. Or maybe not necessarily them, it could be just fleas or small critters that live in the confines of the prison. You have a swarm of walkers that always crowd the fences, and we know that they are not the cleanest bunch out there, so they too might harbor some sort of parasite that's now being passed on to the residents of the prison.
Also, I want to throw this out there. I have two people who I think are responsible for feeding the rats.
One: Rick. Why? I seriously think that at this point in the series, Rick is suffering from some sort of MPD that we are not seeing on screen. I may get a lot of criticism for this, but this is what I believe. Rick doesn't look OK, he's been through a lot, mentally, he is not stable. Some sort of sleepwalking? Perhaps.
Two: The doctor who reminded me of Aziz Ansari. I mention him mainly because he's a doctor. Surely he might be wanting to find a cure for those who turn. But what type of research involves feeding the walkers? I don't know really, but it might be for something. There needs to be a reason why they're feeding them.
So there it is, my thoughts on what might be happening. Feel free to share your ideas, let me know what you think.