Do you have any sources for diseases spreading from industrial husbandry which led to epidemic problems? This speculation is repeated over and over again, but is it really true or just speculation?

African swine fewer is a pretty serious pandemic that is still ongoing. The first outbreak was reported in the beginning of the 20th century when pig farming started to reach truly industrial dimensions. It can be spread by ticks, direct or indirect bodily contact, or contact with bodily fluids and pork products, and is quite difficult to contain. Also, it is endemic in wild boar populations and slowly progressing across the old world.

Fortunately for us, it does not cause diseases in humans (yet). But it causes huge economic damages and is devastating for wild boar populations.

In general, many diseases are not specific to humans, but also affect animals, or are transmitted by them.

I know mad cow disease came from farm raised cattle in the UK. People ate the beef and got mad cow disease.

https://en.wikipedia.org/wiki/Bovine_spongiform_encephalopat...

There are many cases of diseases jumping from animals too humans, I know of Mad Cow Disease.

But it was not an epidemic problem IIRC.

I didn't get Swine Flu in 2009 from a pig.

Salmanella, E.Coli, Avian Flu, Swine Flu...

Are these epidemic problems?