Merck Manual

Please confirm that you are a health care professional

Common Infections of the Gastrointestinal Tract

Common Infections of the Gastrointestinal Tract

Pathogen

Cattle, Sheep, and Goats

Pigs

Horses

Dogs and Cats

Viruses

Bovine viral diarrhea, rotavirus, coronavirus, rinderpest, malignant catarrhal fever, bluetongue, foot-and-mouth disease

Canine parvovirus, canine coronavirus, feline panleukopenia virus, feline enteric coronavirus, canine and feline rotaviruses, canine and feline astroviruses

Rickettsiae

Neorickettsia risticii (Potomac horse fever [equine monocytic ehrlichiosis])

Neorickettsia helminthoeca (salmon poisoning in dogs)

Bacteria

Enterotoxigenic Escherichia coli, Salmonella spp, Mycobacterium paratuberculosis, Fusobacterium necrophorum, Clostridium perfringens (types B, C, and D), Actinobacillus lignieresii, Yersinia enterocolitica, Campylobacter jejuni

Enterotoxigenic E coli, Salmonella spp, Brachyspira hyodysenteriae, Clostridium perfringens types B and C, Lawsonia intracellularis, Clostridium difficile

Enterotoxigenic E coli, Salmonella spp, Rhodococcus equi, Actinobacillus equuli, Clostridium perfringens, Clostridium difficile, Lawsonia intracellularis

Salmonella spp, Campylobacter jejuni, Clostridium spp, , Mycobacterium spp, S, adherent invasive E coli,

Protozoa

Eimeria spp, Cryptosporidium spp

Eimeria spp, Isospora suis

Eimeria spp, Cryptosporidium spp

Isospora spp, Sarcocystis spp, Toxoplasma sp, Giardia sp, Tritrichomonas spp, Cryptosporidium spp, Neospora sp

Fungi

Candida spp (cattle)

Candida spp

Aspergillus fumigatus

Histoplasma capsulatum, Aspergillus spp, Candida albicans, phycomycetes

Algae

Prototheca spp

Prototheca spp

Prototheca spp

Prototheca spp

Parasites (helminths)