A Deterministic Mathematical Model of Mycobacterium avium subsp paratuberculosis (MAP) Transmission on Commercial US Dairy Farms

Authors

  • R. M. Mitchell Department of Population Medicine and Diagnostic Sciences, S3119 Schurman Hall, College of Veterinary Medicine, Cornell University, Ithaca, NY
  • S. M. Stehman Diagnostic Laboratory, College of Veterinary Medicine, Cornell University, Ithaca, NY
  • R. H. Whitlock New Bolton Center, 382 West Street Road, University of Pennsylvania, Kennett Square, PA
  • A. Benedictus Utrecht University, Faculty of Veterinary Medicine, Netherlands
  • Y. H. Schukken Department of Population Medicine and Diagnostic Sciences, S3119 Schurman Hall, College of Veterinary Medicine, Cornell University, Ithaca, NY

DOI:

https://doi.org/10.21423/aabppro20054832

Keywords:

Johne's disease, MAP, Mathematical modeling, eradication

Abstract

Prevalence of Johne's on US dairy farms is estimated at one-fifth of all herds, and is higher for the population of large herds. Of the animals which test positive for MAP, high levels of bacterial shedding are noted in only a small proportion. Despite this low prevalence of high-shedding animals, elimination of MAP from herds has proven exceptionally challenging, with few published reports of successful eradication of MAP from infected farms. Mathematical modeling may aid us in the understanding of this apparent contradiction.

Cover image of the 38th Conference Proceedings: A cow nuzzles her newborn calf in a stall with straw bedding. Both are content. Yellow background.

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Published

2005-09-24

Issue

2005

Section

Research Summaries 1

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