Description    The Gram-negative rod of the genus SALMONELLA has one species called ENTERICA, 6 subspecies and over 2000 serotypes, some of which are host-adapted. Signs range from acute to chronic; shedders can carry the organism without signs. Clinical Salmonellosis is most common in calves but can occur at any age. Septicemia, especially in young calves, causes sloughing of the skin of the extremities in rare cases and meningitis is sometimes part of the disease syndrome. Abortion can follow fetal infection. This is a zoonosis.
Species   Bovine
Signs   Abortion or weak newborns, Agalactia, Alopecia, Anorexia, Bloody stools, feces, hematochezia, Cold skin, Colic, Coma, Congestion oral mucous membranes, Conjunctival, scleral, injection, Conjunctival, scleral, redness, Coughing, Cyanosis, Dehydration, Diarrhea, Dullness, Dyspnea, Fever, Forelimb lameness, Forelimb swelling, Generalized lameness or stiffness, Generalized weakness, Hindlimb lameness, Hindlimb swelling, Icterus, Inability to stand, Increased respiratory rate, Lack of growth or weight gain, Mastitis, Moist skin, hair or feathers, Mucoid nasal discharge, Mucous, mucoid stools, feces, Opisthotonus, Purulent nasal discharge, Reluctant to move, Seizures or syncope, Skin necrosis, Sudden death, Tachycardia, Underweight, poor condition, thin, emaciated, unthriftiness, ill thrift, Unusual or foul odor, stools, feces, Weight loss
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Bordonaro R et al. Molecular detection of Salmonella species in bovine fecal samples. J Vet Diagn Invest 2013;25:756-758 [Web Reference]
Cummings KJ et al. Antimicrobial Resistance Trends Among Salmonella Isolates Obtained from Dairy Cattle in the Northeastern United States, 2004-2011. Foodborne Pathogens and Disease. 2013;10:353-361 [Web Reference]
Nielsen LR. Review of pathogenesis and diagnostic methods of immediate relevance for epidemiology and control of Salmonella Dublin in cattle. Veterinary Microbiology 2013;162:1-9 [Web Reference]
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