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Shiga Toxin-Producing Escherichia coli in Mastitis: An International Perspective
Shelton E Murinda1,2, A Mark Ibekwe3, Nora G Rodriguez1
11 Animal and Veterinary Sciences Department, California State Polytechnic University, Pomona, California.
Foodborne Pathogens and Disease
|January 10, 2019
Summary
Shiga toxin-producing Escherichia coli (STEC) is an underdiagnosed cause of bovine mastitis. This review examines STEC prevalence, virulence, and resistance, highlighting public health concerns and the need for surveillance.
Area of Science:
- Veterinary Microbiology
- Bovine Pathology
- Food Safety
Background:
- Escherichia coli mastitis involves diverse pathotypes, including Shiga toxin-producing E. coli (STEC).
- STEC's role in bovine intramammary infections (IMI) is often overlooked due to lack of specific testing.
- Underreporting of STEC in mastitis poses challenges for understanding its true prevalence and impact.
Purpose of the Study:
- To provide an international overview of STEC prevalence in bovine mastitis.
- To summarize STEC serotypes, virulence factors, and antimicrobial resistance (AMR) associated with IMI.
- To underscore the public health implications of STEC in cattle.
Main Methods:
- Systematic review of international literature on STEC in bovine mastitis.
- Analysis of reported STEC serotypes, virulence genes, and AMR patterns.
- Synthesis of data to assess prevalence and public health risks.
Main Results:
- STEC is an emerging pathogen in bovine mastitis, with varying prevalence globally.
- Common STEC serotypes and virulence factors associated with IMI were identified.
- Antimicrobial resistance profiles of bovine mastitis-associated STEC were characterized.
Conclusions:
- STEC involvement in bovine mastitis requires greater attention and surveillance.
- Understanding STEC epidemiology is crucial for animal health and public health policy.
- Further research into environmental contamination and food chain security is needed, alongside science-based control strategies.
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