A 6-year-old female was in clinic with her 2 and 4 year old siblings for her well child examination. She was healthy and gaining appropriate developmental milestones. As the pediatrician was leaving the mother asked about when and what types of pets were recommended for families. Her husband had grown up with dogs and she hadn’t had any animals as pets. “My husband wants to get a puppy for the kids now but I am not sure about it,” she said.
“We’ll,” the pediatrician started, “pets can be great for families but you need to have the right pet. Dogs can be wonderful but young ones are also more likely to be excited and could bite, and some breeds are gentler than others. Cats can also be good, but again bites and scratches can happen. There’s also the issue of taking care of the animals too like feeding and grooming. And your children aren’t old enough to take on much of that responsibility. Usually they should be around 5-6 years old. There’s also the issue of potential diseases that pets can spread. No one in your house has an immune problem right?” he asked. “No, but my mother-in-law is taking some medicine and comes to our house a lot,” she said. “That’s also a potential consideration. You might also consider a smaller animal like a gerbil or rabbit, or even fish which are pretty easy to take care of and generally don’t need as much attention. I’m not trying to stop you from any animal, but there are lots of considerations. I’ll print out some information from my professional society. I also bet there is information from the vet societies as well,” he continued.
Discussion
Pets can give social and emotional support for people and therefore many people have pets in their lives. Pet ownership comes with responsibilities for the health and well-being of the animals as well as safe-guarding the health of the people who own them.
Zoonoses are infections which spread from non-human vertebrates to humans. Some 70+ diseases are potential zoonoses. Rates are not uniform and depend on patient-specific factors, type of pet, how the pets are taken care of. Zoonoses can be spread by:
- Direct contact
- By blood, saliva, urine, feces, mucous or other body fluids
- Touching animals, bites, scratches, licking, cleaning up feces/urine, skinning/processing meat
- Some examples include: Bartonella, Brucellosis, Hantavirus, Pasteurella, Rabies, Salmonella, Tularemia,
- Indirect
- Animal fluids and skin/hair/feathers
- Contact where animals live by touching, fomites and inhalation such as pet habitats, chicken coop, soil, aquarium water tank etc.
- Some examples include: Clostridium, Campylobacter, Hantavirus, Leptospira, Salmonella, Toxoplasma, various worms
- Vectors
- Bitten by fleas, mosquitos, ticks
- Some examples include: Encephalitis viruses, Lyme Disease, Malaria, Plague, Rickettsia, Tularemia
- Foodborne and Waterborne
- Ingesting animal feces in contaminated food or water, or undercooked or unpasteurized foods (meat, eggs, milk, etc.)
- Some examples include: Brucellosis, Giardia, Leptospira, Salmonella,
Some of the more common pet-associated zoonoses include:
- Salmonella – amphibians, reptiles, poultry, hedgehogs, rodents
- Toxocara (round worm) – dog/cat feces ingested directly or through soil such as sandboxes, gardens
- Cat scratch (Bartonella henselae) – especially in young kittens
- Giardia – contaminated water
- Cryptosporidium – contaminated water
Learning Point
Considerations for choosing a pet include:
- Child age and developmental stage – generally at 5-6 years a child can understand instructions and follow them. Children can start to understand the responsibility of pet care.
- Animal characteristics – easy going animals that are people friendly such as beagles or retriever dogs are often better choices. Older animals that have been around people also can be good choices.
- Animal care – animals need to be taken care of in feeding, grooming, hygiene and general exercise and socialization. They also require appropriate veterinary care.
- Larger animals tend to need more care, whereas smaller ones need less but not always.
- Specific medical conditions – allergies to animal dander can be a real problem for some people. Also immunocompromised individuals can also be at higher risk for potential problems (see below)
- Specific animals – risk for zoonoses depends on the animal species and age.
People who are higher risk for serious illnesses from zoonoses include children < 5 years, those older than 65 years, pregnant women and those who are immunocompromised.
Recommendations to protect people from zoonoses include:
- Washing hands after being around animals or cleaning up after them. Running water and soap are best. If not available then using hand sanitizer with 60% alcohol content is a second choice but hand sanitizers do not get rid of all types of organisms.
- Arthropod protection using insect sprays and protective clothing.
- Keep sandboxes covered when not in use, and fence gardens if appropriate.
- Food handling safety – thorough washing of fruits and vegetables, and appropriate handling of protein (meats, fish, dairy, etc) to prevent spread to surfaces and utensils. Proper kitchen sanitizing is important, along with food storage.
- Petting zoos or other animal exhibits are also a risk as the animals tend to be younger and more likely to have or spread a zoonoses. Be aware that animals may be in other environments such as daycare facilities or schools or when traveling. Neighbors and friends may also have animals.
- Avoiding bites, scratches and saliva from animals. Young animals tend to get more excited and will bite, scratch or lick more often. Likewise small children tend to do the same and therefore the combination of both increases the risk. Children should be supervised around any animal.
- Children should be taught never to approach or touch an unfamiliar animal or any wild animals in order to avoid scratches/bites; this includes deceased animals in the environment. They should also be taught not to tease or abuse an animal. Children may not understand that taking away a toy from an animal may make them more aggressive for example.
- If there is an immunocompromised individual in the environment, then additional precautions should be taken such as having that person not handle the animal including grooming and cleaning up feces/urine. Animals should have routine veterinary care and in addition may require additional care such as deworming more often. Also puppies and kitten less than 6 months old are discouraged if acquiring a new pet.
Questions for Further Discussion
1. What pets are common in your patient population?
2. What zoonoses are common in your patient population?
3. What other recommendations do you give to your families with pets?
4. What animals are considered emotional support animals? A review can be found here
Related Cases
- Disease: Pets and Animals | Animal Diseases and Your Health | Pets and Pet Health
- Symptom/Presentation: Health Maintenance and Disease Prevention
- Specialty: General Pediatrics | Infectious Diseases
- Age: Infant
To view pediatric review articles on this topic from the past year check PubMed.
Evidence-based medicine information on this topic can be found at SearchingPediatrics.com and the Cochrane Database of Systematic Reviews. Information prescriptions for patients can be found at MedlinePlus for these topics: Animal Diseases and Your Health and Pet Health.
To view current news articles on this topic check Google News.
To view images related to this topic check Google Images.
To view videos related to this topic check YouTube Videos.
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Tips for Choosing the Right Pet for Your Family. HealthyChildren.org. December 12, 2019. Accessed December 1, 2025. https://www.healthychildren.org/English/safety-prevention/at-home/Pages/Before-Choosing-a-Pet.aspx
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Zhang YF, Li SZ, Wang SW, et al. Zoonotic diseases in China: epidemiological trends, incidence forecasting, and comparative analysis between real-world surveillance data and Global Burden of Disease 2021 estimates. Infect Dis Poverty. 2025;14:60. doi:10.1186/s40249-025-01335-3
Author
Donna M. D’Alessandro, MD
Professor of Pediatrics, University of Iowa
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