Gastrointestinal Infection


Cause: Salmonella spp., Escherichia coli, Campylobacter jejuni, Campylobacter coli, Yersinia
(especially in pigs), Cryptosporidium parvum, Giardia intestinalis

Occurrence in Animals: All farm animals and other wild and domestic species (dogs, cats, birds) can carry
and shed these microorganisms

Source in Animals: Feces

Exposure: Accidental ingestion, both directly and indirectly through contaminated objects


    • Diarrhea is the most common presentation in affected animals
    • Healthy animals can shed microorganisms
    • Organisms can persist up to several months in the environment
    • Diarrhea, nausea, vomiting, abdominal pain


  • Good personal hygiene:
    • WASH HANDS¬†after handling animals and their environment
    • No eating, no drinking, no smoking around the animals
  • Wear gloves if in contact with animals that have diarrhea or their environment.
  • Immunocompromised individuals may experience serious disease from contact with organisms that cause gastrointestinal infection
  • Face mask is recommended for additional protection
  • Use a boot dip, dedicated boots, or disposable boot covers when accessing areas of potentially infectious animals
  • Do not drink raw, unpasteurized milk

Additional information about these agents can be found at:

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