There are many free-roaming cats on farms in Ireland that reproduce completely uncontrollably. They live a life that no cat should.
If at all, they are fed exclusively leftovers and cow's milk and then left to fend for themselves. Massive inbreeding takes place which has terrible consequences.
None of the cats ever see a vet because, according to many farmers, neutering them would mean they would no longer catch mice. So they are not vaccinated or dewormed and therefore get all the worst diseases that cats can catch. Cat flu, cat disease, FIP and leukemia are the order of the day. Often in combination.
We have been active in Ireland for 17 years now and it really is a bottomless pit.
There is now better information and good neutering campaigns at veterinary clinics, but it will be a long time before we no longer get incredibly sick cats like we have for so many years.
Almost all of the cats we take in, nurture, care for, tame and adopt come from a farm.