Short answer: Most dog ‘stomach flu’ (vomiting + diarrhea) is caused by organisms that don’t infect humans – dietary indiscretion, parvovirus, canine viruses. But some pathogens DO cross: Giardia, Cryptosporidium, Salmonella, Campylobacter, and E. coli. Wash hands after cleaning up dog accidents and after handling raw food.
What you should actually do
- Giardia: probably the most common zoonotic GI infection – dogs and humans share assemblages.
- Salmonella + Campylobacter: most often transmitted from raw-food diets and raw chicken treats.
- Cryptosporidium: usually fecal-oral, especially from young puppies.
- Parvovirus, canine coronavirus: do NOT cause human disease.
- Wash hands after picking up poop, before eating, and especially after raw-fed dog contact.
The single biggest zoonotic GI risk is raw-meat diets – dogs fed raw shed Salmonella and Campylobacter in their stool intermittently for months, even when healthy. Immunocompromised people, infants, and elderly household members are at higher risk; the CDC and AVMA advise against raw diets in those households.
Routine fecal-oral hygiene works: pick up dog poop, wash hands, avoid letting dogs lick faces of immunocompromised people, and feed cooked or commercial dog food when in doubt.
Dig deeper
⚕️ Medical Disclaimer
The information on this page is intended for educational purposes only and does not replace a hands-on veterinary examination. Drug doses depend on your dog’s complete clinical picture, concurrent medications, and the exact product formulation. Always confirm dosing with your veterinarian before administering any medication, and contact a 24-hour veterinary emergency service or animal poison control immediately if you suspect a medication overdose or adverse reaction. Editorial standards: every drug dose published on PuppaDogs is cross-checked against multiple authoritative veterinary references and reviewed by PuppaDogs Veterinary Editorial Team before publication.
