Likelihood Ratios for Multiple Levels of ELISA S/P Ratios in Dairy Herds Infected with Mycobacterium avium subsp. paratuberculosis (MAP)

Authors

  • Larew Naugle Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43201
  • W. Saville Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43201
  • W. Shulaw Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43201
  • T. Wittum Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43201
  • I. Brownlee 10730 Carolina Trace, Harrison, OH
  • B. Love Animal Diagnostic Laboratory, Department of Veterinary Sciences, Penn State University
  • B. Byrum Animal Disease Diagnostic Laboratory, Division of Animal Industry, Ohio Department of Agriculture

DOI:

https://doi.org/10.21423/aabppro20035300

Keywords:

ELISA, SIP ratios, MAP infection, dairy herd

Abstract

Several researchers have advocated the quantitative evaluation of ELISA SIP ratios rather than relying on a single cutoff value to classify test results. Here, we present likelihood ratios that evaluate the risk of MAP infection for multiple levels of ELISA SIP ratios for cows originating from MAP-infected dairy herds.

Cover image of the 36th Conference Proceedings: Holstein cows standing in a row at a fence. One cow has put her head through the fence and is curiously inspecting a pile of hay. Yellow background.

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Published

2003-09-18

Issue

2003

Section

Research Summaries - Dairy I