Healthy-looking animals carry E. coli and salmonella, and the FDA lists petting zoos as an infection route.
Transmission is hands to mouth: pet the goat, eat the snack, get sick. The CDC's core rule for animal contact: wash hands with soap and water after handling animals or anything in their environment, before any food. Keep food, drinks, and pacifiers out of animal areas, skip the animal kisses, and supervise young children's handwashing, since kids under 5, older adults, and the immunocompromised get hit hardest. Diarrhea after a farm visit, especially bloody, is worth telling the doctor about the animal contact.
What to do
Common questions
Can you get sick from petting zoos?
Yes, and the animals do not have to look sick to be the source. The FDA names pets and petting zoos as a route for E. coli infection when animals carry pathogenic strains, and Shiga toxin-producing E. coli from animal contact can cause bloody diarrhea and, in children especially, a life-threatening kidney failure. Salmonella is the other regular: animal contact outbreaks happen every year, and the CDC's guidance for animals like backyard poultry, the same germs as petting-zoo goats and chicks, is built on one behavior: wash your hands after handling animals, their food, or anything in their environment. The classic transmission scene is a child who pets a goat, then eats a snack with unwashed hands. So the rules that make petting zoos fine: wash hands with soap and water right after the animal area, before any food; use sanitizer only as a bridge until proper washing; keep food, drinks, strollers, and pacifiers out of the animal pens; no face-kissing animals; and supervise under-5s hand-over-hand at the sink, because young children, older adults, and people with weakened immune systems are the ones these germs hit hardest. If diarrhea, especially bloody diarrhea, shows up in the days after a farm visit, mention the animal contact to the doctor, because it changes what they test for.