Page 600 - The Veterinary Laboratory and Field Manual 3rd Edition

Some micro-organisms commonly isolated from animals 537

Skin flora and causes of Bacteria Viruses**
infection (abscesses etc.)
Sheep Corynebacterium Scrapie, sheep pox, Orf virus
pseudotuberculosis
(caseous lymphadenitis)
Pigs Trueperella (Actinomyces) Swine pox (other viruses
pyogenes may cause skin lesions, e.g.
Streptococci (types E,P, U,V) swine fever)
Horses Corynebacterium spp. Papilloma virus, sarcoids (mixed
Histoplasma spp. causes)
Others
Dogs and Cats Nocardia spp.
Blastomyces spp.
Others
Genito-urinary tract: Urine is often contaminated by bacteria from the gastrointestinal and/ or
reproductive tracts. See Chapter 10 for causes of infertility and infections of the reproductive tract.
Cattle Corynebacterium sp. IBR/infectious pustular vulvo-
(see Chapter 10 for causes vaginitis
of abortion)
Others
Sheep Various, urinary tract infection Various (e.g. Border disease)
See also Toxoplasmosis uncommon.
(Chapter 3) Causes of abortion/infertility
include Brucella ovis., Listeria sp.
Chlamydophila abortus,
Salmonellae, etc.
Pigs See Chapter 10 for causes of
abortion.
Horses Various, urinary tract infection Equine herpes virus and Equine
uncommon. Causes of abortion/ viral arteritis (may
infertility include Salmonellae, E. be isolated from body
coli, Klebsiella sp., Streptococcus fluids following an
zooepidemicus abortion
Dogs (urinary infection Escherichia coli Transmissible venereal tumour
relatively rare in cats, may Proteus spp. (lesions on the vulva, or the penis
be secondary to crystal Pseudomonas spp. and preputial mucous membranes
formation) Enterobacter spp. in dogs)
Faecal Streptococci
Eyes: Some bacteria which have been isolated from eyes. Viral diseases associated with eye discharge and
conjunctivitis
Cattle Moraxella bovis (infectious Malignant catarrhal fever, mucosal
bovine keratoconjunctivitis (pink disease, infectious bovine
eye) rhinotracheitis
Branhamella (Neisseria) ovis
Chlamydophila psittici

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