Publications

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comparison of three methods of surveillance with application to the detection of johne's disease seropositivity in texas cattle.surveillance and monitoring are important for measuring the level of disease in a population, documenting changes in prevalence over time, determining high-risk areas for implementation of control measures, eradicating disease, and documenting freedom from disease. the documentation of freedom from disease has importance for international trade and the resumption of production after an outbreak. johne's disease (jd) is an example of an endemic disease of cattle that has variable prevalence relat ...200818406483
familial and herd-level associations with paratuberculosis enzyme-linked immunosorbent assay status in beef cattle.a cross-sectional study was performed to determine the odds of having a positive paratuberculosis elisa result if the dam was elisa positive in texas beef cattle, adjusted for individual and herd-level risk factors for seropositivity. texas beef cattle (n = 2,621) were tested for paratuberculosis by using a commercial elisa and microbiologic culture of feces for mycobacterium avium subsp. paratuberculosis (map). pedigree data were collected to identify dam-and sire-offspring pairs. bayesian mixe ...200818469058
attitudes towards biosecurity practices relevant to johne's disease control on beef cattle farms.the success of control programs can be improved when producers' attitudes towards these programs are positive. implementation of control programs for chronic diseases are more challenging than those for acute diseases because of the absence of the "cues-to-action" that are associated with acute diseases. johne's disease (jd) is a chronic diarrheal disease of ruminants, and national voluntary control programs exist in several countries. we used a mailed cross-sectional survey to describe the atti ...201020102783
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