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National Agricultural Library
U.S. Department of Agriculture
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  4. Vaccination as an Intervention Strategy for Reduction of Escherichia coli O157:H7 during a 45-Day Pre-Conditioning Period

Vaccination as an Intervention Strategy for Reduction of Escherichia coli O157:H7 during a 45-Day Pre-Conditioning Period

Objective

1. Determine baseline prevalence for the proportion of freshly weaned Montana Calves
shedding Escherichia coli O157:H7 in the feces
<P>
2. Determine the effectiveness of an experimental vaccine as a pre-harvest intervention strategy
for reducing the proportion of calves shedding Escherichia coli O157:H7 in the feces

More information

Findings: The baseline prevalence of weaned calves in Montana at 9.4% is enough to perpetuate infection and should be considered a problem. Due to limited number of animals found positive in this study, additional research is needed to establish the potential effectiveness of vaccines against E. coli O157:H7 in pre-conditioning operations.

<P> For complete projects details, view the <a href="http://www.beefresearch.org/CMDocs/BeefResearch/Vaccination%20as%20an%2…; target="_blank">Project Summary. </a>

Investigators
Paterson, John
Institution
Montana State University
Start date
2004
End date
2004
Funding Source
Nat'l. Cattlemen's Beef Assoc.
Project number
BC-2004-22
Categories
Escherichia coli