I did plumbing service work for a few years. A local alcoholic nurse lived in a house full of dog poo ( 2 dogs inside and 12 hour days) and I had to work there a couple times. No way she didn't infect people, her laundry laid on the floor next to the mess and they destroyed her furniture. It was mentioned to her employer and she eventually found homes for the dogs. Still,,,,
My bikes are all at least inside and are litter trained.