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Detection of antibodies to leptospiral genus-specific antigen in human and animal sera by indirect hemagglutination test with a partially purified genus-specific protein antigen.

Antibodies against leptospiral genus-specific antigen were detected in the sera from clinically diagnosed human leptospirosis and suspected animal leptospirosis by indirect hemagglutination (IHA) test with a partially purified genus-specific protein antigen (GP-Ag). The reaction was positive in the infected humans and animals irrespective of the leptospiral serovars. No significant correlation was found between IHA titer against GP-Ag and microscopic agglutination (MA) titer. IHA titer did not always develop in parallel with MA titers. Sera obtained from healthy individuals were negative in both IHA and MA tests.

Animals↗

Thyroid issues in reproduction.

Observations in people and animals demonstrate relationships between thyroid and reproductive functions. Thyroid issues of importance to small animal reproduction are twofold. First, some thyroid disorders, such as lymphocytic thyroiditis and some forms of congenital hypothyroidism, appear to be heritable. Those traits might be considered undesirable. If so, to eliminate the trait affected animals would not be selected as breeding stock. Second, thyroid disorders may adversely affect fertility, pregnancy, or neonatal health. If a causal relationship existed between thyroid and reproductive disorders, correction of one would be expected to result in resolution of the other. This is often not the case. Although animals and people with thyroid disorders may also have reproductive disorders, usually disorders other than thyroid disease are the cause of reproductive abnormalities. It appears that euthyroidism supports optimal reproductive performance, but clinically significant reproductive dysfunction is manifested only under certain uncommon conditions of thyroid disease in dogs and cats.

Animals↗

Glucose-nonfermenting Gram-negative bacilli associated with clinical veterinary specimens.

Glucose-nonfermenting gram-negative bacilli (NFB) have been recognized recently as opportunistic pathogens of humans. With few exceptions, strains of NFB have not been considered important enough to be identified when isolated from animals. In this study, all NFB isolated during a 1-year period in a clinical veterinary microbiology laboratory were identified to determine their prevalence. Of the 347 strains of NFB obtained, the most common species were Pseudomonas aeruginosa, Acinetobacter calcoaceticus, Bordetella bronchiseptica, and Pseudomonas pseudoalcaligenes. Of all clinical veterinary specimens submitted for cultures, 10% contained nonfermenters.

Acinetobacter↗

Salmonellosis.

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Animal Feed↗

Neuroanatomic and pathophysiologic aspects of intervertebral disc disease in the dog.

A sound understanding of anatomy and the pathophysiology of disease is important in all branches of medicine, but nowhere is it more critical to success than in the medical and surgical management of intervertebral disc disease. Due to the remote location and unforgiving nature of the spinal cord, the veterinary surgeon must possess an intimate working knowledge of the surgical anatomy of the vertebrae, ligaments and joints of the spine, intervertebral discs, spinal cord, and spinal nerves. In addition, proper localization of spinal cord lesions during the neurological evaluation requires awareness of the functional neuroanatomy of the upper and lower motor motor neurons, the sensory systems and tracts, and the reflex arcs. Knowledge of the pathophysiology the intervertebral disc degeneration and the response of the spinal cord to disc extrusions are also important in the overall understanding of the disease and enhances proper decision making for its management. This chapter reviews the portions of the gross and functional neuroanatomy and the pathophysiology of the intervertebral disc and the spinal cord that are pertinent to the dog with intervertebral disc disease. Emphasis is placed on concepts that are critical for the veterinary surgeon who is involved in the surgical management of the disc patient.

Animals↗

Transmission of hydatid disease to sheep from wild dogs in Victoria, Australia.

Adult tapeworms and metacestodes of Echinococcus granulosus were found commonly in wildlife on Crown Land (Alpine National Park or State Forest) in the area around Mansfield, Victoria. A total of 756 sheep from 32 farms in the areas were examined at slaughter. Seventeen of the farms (Group A) adjoined Crown Land and wild dogs commonly entered these farms and killed sheep. A high prevalence of hydatid infection was found in sheep from 15 of these farms. Serology and arecoline purging failed to identify infection with E. granulosus in any domestic dogs on these farms, despite some farmers sometimes feeding their dogs with offal of sheep and/or kangaroos. The remaining 15 farms (Group B) were in an area where wild dogs did not occur. Sheep infected with hydatid cysts were present on 2 farms in Group B, but E. granulosus infection was not evident in wildlife species examined from this area. The only sheepdog to have detectable serum antibodies against E. granulosus was a dog from a farm separating the 2 Group B farms where infected sheep were found. Echinococcus granulosus were not found when this dog was purged. The implications of the results of this study are discussed in terms of transmission and control.

Animals↗