Studies on Serotype-Specific Regulation of Antigen Expression in Pasteurela Haemolytica

Authors

  • Cynthia Gonzalez Department of Veterinary PathoBiology, College of Veterinary Medicine, University of Minnesota, 1971 Commonwealth Ave., St. Paul, MN 55108
  • M. P. Murtaugh Department of Veterinary PathoBiology, College of Veterinary Medicine, University of Minnesota, 1971 Commonwealth Ave., St. Paul, MN 55108
  • S. K. Maheswaran Department of Veterinary PathoBiology, College of Veterinary Medicine, University of Minnesota, 1971 Commonwealth Ave., St. Paul, MN 55108

DOI:

https://doi.org/10.21423/aabppro19926612

Keywords:

BRD, pleuropneumonia, shipping fever, Bovine respiratory disease

Abstract

Bovine respiratory disease (BRD) remains a major economic problem for both the beef and dairy cattle industries in the U.S. (1). Recent estimates of the losses due to BRO exceed a billion dolars annually which is greater than all other diseases combined (2).

The most common sequel observed in BRD is a fulminating fibrinonecrotic pleuropneumonia called shipping fever or pneumonic pasteurellosis. Although BRD is a multifactorial disease involving interaction between a number of environmental factors, various viruses and bacteria, Pasteurella haemolytica biotype A serotype 1 (A1) also called serotype 1 (ST1) has been established as the primary agent involved in the pathogenesis of the pneumonia (3). P. haemolytica ST1 can be isolated in pure culture from typical pneumonic lesions of the disease (4).

Cover image of the Third Volume of the 25th Conference Proceedings: An earl-morning photo of farmland. A small farm is nestled among rolling hills, fields stretching across a curving road that disappears between dark green trees. The barn is a cheery red color with a tin roof. Beneath the photo is the a statement of the conference's theme in white italics: Challenges of the Bovine Industry in the Twenty-First Century. Deep red background.

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Published

1992-08-31

Issue

1992: Volume 3

Section

Respiratory Disease

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