Major diseases have been a part of human history throughout. There is no evidence that mega farming is making it worse.
Farming changed radically after the 1950s, so pretty recently. It's pretty reasonable to believe it will. If you've been anywhere near mega livestock operations of any kind then you would know.
Farming changed radically after the 1950s, so pretty recently. It's pretty reasonable to believe it will. If you've been anywhere near mega livestock operations of any kind then you would know.