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Attempts to extract virus from materials collected from cases of bovine lymphosarcomaSiegfried, Lynne Mary Grodzicki, January 1968 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1968. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Characterisation of recent rinderpest virus isolates circulating in East AfricaWamwayi, Henry Matukho January 1993 (has links)
No description available.
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The epidemiology of enteric virus infections of calvesReynolds, D. J. January 1983 (has links)
No description available.
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Antigenic comparison of bovine, ovine, equine, and llama adenovirusesYusuf, Irwandi 15 March 1993 (has links)
Fifteen adenoviruses from cattle, sheep, horses, and llamas were studied by
virus neutralization to determine their degree of antigenic similarity. Prototype viruses
included bovine adenoviruses species 1-8, ovine adenoviruses species 5 and
6, and equine adenovirus species 1. Unclassified viruses that were compared to
the prototype viruses were isolated from different locations within Oregon and
were represented by bovine isolate 32CN, ovine isolates 47F and 475N, and llama
isolate 7649. Reciprocal virus neutralization tests were performed and the degree
of antigenic similarity, i.e., species differentiation was determined by criteria established
by the International Committee for the Nomenclature of Viruses.
The study showed that many of the adenoviruses, both prototype and unclassified,
shared minor antigenic components with each other. Prototype viruses possessed
major antigenic differences and, as previously demonstrated by other
investigators, should be classified as separate virus species. Bovine adenovirus
isolate 32CN was shown to be of the same species as ovine adenovirus isolate
475N, but neither isolate was similar to any of the prototype virus species studied.
Ovine adenovirus isolate 47F was shown to be of the same species as ovine adenovirus
species 5 strain RTS 42. Llama adenovirus isolate 7649, while sharing minor
antigens with different viruses from cattle and sheep, was shown to be a distinct
species. This represents the first species of adenovirus from llama. / Graduation date: 1993
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Development of an enzyme-linked immunosorbent assay for the serologic diagnosis of bovine adenovirus type 3Whipple, Margaret Jo 26 November 1991 (has links)
An enzyme-linked immunosorbent assay was developed to
measure specific antibody response in bovine sera to bovine
adenovirus type 3 (BA3), an etiologic agent of respiratory
disease causing economic losses annualy to the cattle
industry. Observed endpoint titers were determined using
the intersection point from optical density values of
serially diluted sera with a positive-negative threshold.
Regression equations were determined from standards with
titers ranging from low to high and used to predict ELISA
titers from a single-serum dilution. A near-linear
relationship existed between the observed and predicted
ELISA titers of 118 bovine sera (r=0.9261). Predicted ELISA
titers were determined using the single-dilution method for
another 76 bovine sera and the correlation between the ELISA
titers and serum-virus neutralization titers for these sera
indicated a strong linear trend (r=0.8172).
Both the ELISA and serum-virus neutralization titers on
the bovine sera tested indicated widespread exposure to
several types of bovine adenovirus. Although detection of
active infection would still require examination of sera
over time for evidence of a rising titer, the single-dilution
ELISA devised should provide a rapid and sensitive
method for detection of antibody response to bovine
adenovirus type 3. / Graduation date: 1992
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