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United States Department of Agriculture

Agricultural Research Service

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Research Project: Solutions for the Food Safety Threat Posed by Salmonella in the Lymph Nodes of Cattle Presented for Harvest

Location: Food and Feed Safety Research

Project Number: 3091-32000-030-58
Project Type: Reimbursable

Start Date: Sep 01, 2011
End Date: Aug 31, 2015

Explore and develop opportunities for control based on data identifying and characterizing routes of infection of Salmonella in the lymph nodes of cattle. Salmonella vaccine and chlorate will be evaluated to determine effectiveness in eliminating Salmonella from the lymph nodes following oral and dermal inoculation of dairy cattle.

Three studies will be conducted using dairy calves purchased and transported to our laboratory in College Station, TX. The first study will examine the duration and distribution of infection of Salmonella in several lymph nodes in calves receiving an SRP Salmonella vaccine. The second study will examine routes of exposure (oral or dermal) on Salmonella uptake and distribution by the lymph nodes. The final study will examine the effectiveness of sodium chlorate in eliminating Salmonella from the lymph nodes of previously infected calves.

Last Modified: 8/26/2016
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