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Veterinary Medicine International
Volume 2012, Article ID 674085, 5 pages
Research Article

Estimated Prevalence of Caprine Paratuberculosis in Boer Goat Herds in Missouri, USA

Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO 65211, USA

Received 30 October 2012; Revised 13 November 2012; Accepted 14 November 2012

Academic Editor: Sagar M. Goyal

Copyright © 2012 Patrick Pithua and Nathaniel S. Kollias. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The objective of this study was to estimate true animal-level and herd-level prevalence of Mycobacterium avium subsp. paratuberculosis (MAP) antibodies in Missouri Boer goat herds. Sera harvested from blood samples collected from goats ≥24 months of age in 25 Missouri Boer goat herds were tested for presence of MAP antibodies using a commercial ELISA kit. Herds were declared positive for MAP if one or more goats in the herd tested positive for MAP antibodies. True animal, within-herd, and between-herd prevalences were calculated using the Rogan-Gladen estimator and were 1.4% (95% CI = 0.1 to 3.6%), 3% (95% CI = 0 to 6%), and 54.7% (95% CI = 28.2 to 86.2%), respectively. Findings in this study confirmed that MAP infection is endemic in Missouri Boer goat herds.