If someone lived in a house that the floors, carpet etc was covered in dog & cat pee and feces… all over the house… & breathing it in for years… what are the health problems-hazards that would arise from that???

If you walk into an apartment and can smell the cat urine and it is very strong, can living in this environment cause health problems? AKA Kidney problems, stomach aches, head aches things of this nature. Would a person with a week immune system have more problems?