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Characterization of Shiga-toxin Producing E. coli Infections and Cryptosporidia in South Dakota with Respect to Agricultural Exposures and Other Risk Factors

Project Description

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2012-2013

Shiga-toxin producing E. coli (STEC) infections and cryptosporidiosis are significant causes of illness. South Dakota residents consistently are afflicted with these illnesses at higher rates than the general US population.

Risk factors for these illnesses have not been well-characterized in South Dakota. This proposal seeks to describe the epidemiology of STEC infections and cryptosporidiosis in South Dakota, with special emphasis on agricultural and animal risk factors. This proposal is innovative in that this characterization has not previously been made of South Dakota data.

South Dakota Department of Health case reports from 2011 and 2012 will be utilized. Case patients from 2012 will be interviewed over the phone, with specific emphasis on animal agricultural exposures. An interview instrument developed by the Minnesota Department of Health will be utilized. Data obtained will be entered into a database.

When analysis is complete, a clearer picture of the descriptive epidemiology of these diseases in South Dakota will emerge. Our findings will be combined with similar work in Minnesota and Wisconsin to provide a robust view of these diseases in the Midwest. This data will inform further work to determine the role of specific risk factors for STEC infections and cryptosporidiosis in South Dakota residents.

The information gained will be used to inform stakeholders in South Dakota and elsewhere regarding these illnesses. It is anticipated that risk factors identified in this descriptive work will be instructive for agriculture workers and their families seeking to keep themselves safe from these infections.

2013 Project Update

 

This project has increased awareness of animal contact zoonoses by farm operators hosting visitors.  Findings are being utilized to quantify animal contacts among farm visitors.

Project Personnel

PRINCIPAL INVESTIGATOR
COLLABORATORS

Publications and Presentations

  • Daly, R.F. & Hill, N. T. (2016). Characterizing the Role of Animal Exposures in Cryptosporidiosis and Shiga Toxin‐producing Escherichia coli Infections: South Dakota, 2012, Zoonoses and Public Health. 63(6):467-476. https://doi.org/10.1111/zph.12251

Additional Grant Funding

Brockshus, H. Characterizing Human Salmonellosis Cases in South Dakota with respect to Animal Exposure. SDSU Bentley and Griffith Undergraduate Research Awards, $2600.

The project also led to a new partnership with the University of South Dakota Sanford School of Medicine.