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Enrichment and Detection of Clostridium perfringens Toxinotypes in Retail Food Samples
Published on: October 18, 2019
Approaching toxigenic Clostridia from a One Health perspective
Laura M Cersosimo1, Jay N Worley2, Lynn Bry1
1Massachusetts Host-Microbiome Center, Dept. Pathology, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
Abstract:
Spore-forming pathogens have a unique capacity to thrive in diverse environments, and with temporal persistence afforded through their ability to sporulate. Their prevalence in diverse ecosystems requires a One Health approach to identify critical reservoirs and outbreak-associated transmission chains, given their capacity to freely move across soils, waterways, foodstuffs and as commensals or infecting pathogens in human and animal populations. Among anaerobic spore-formers, genomic resources for pathogens including C. botulinum, C. difficile, and C. perfringens enable our capacity to identify common and unique factors that support their persistence in diverse reservoirs and capacity to cause disease. Publicly available genomic resources for spore-forming pathogens at NCBI's Pathogen Detection program aid outbreak investigations and longitudinal monitoring in national and international programs in public health and food safety, as well as for local healthcare systems. These tools also enable research to derive new knowledge regarding disease pathogenesis, and to inform strategies in disease prevention and treatment. As global community resources, the continued sharing of strain genomic data and phenotypes further enhances international resources and means to develop impactful applications. We present examples showing use of these resources in surveillance, including capacity to assess linkages among clinical, environmental, and foodborne reservoirs and to further research investigations into factors promoting their persistence and virulence in different settings.
Insights
Spore-forming pathogens persist in diverse environments, necessitating a One Health strategy. Genomic data aids in tracking these resilient microbes, informing public health and food safety efforts against diseases like C. botulinum and C. difficile.
Area of Science:
- Microbiology
- Genomics
- Public Health
Background:
- Spore-forming pathogens exhibit remarkable environmental persistence due to their ability to sporulate.
- Their presence across diverse ecosystems, including soil, water, and food, necessitates a comprehensive One Health approach.
- Anaerobic spore-formers like Clostridium botulinum, Clostridium difficile, and Clostridium perfringens pose significant public health concerns.
Purpose of the Study:
- To highlight the utility of genomic resources for understanding spore-forming pathogen persistence and virulence.
- To demonstrate how genomic data aids in identifying reservoirs and transmission chains.
- To showcase the application of these resources in surveillance and disease prevention strategies.
Main Methods:
- Utilizing publicly available genomic data from NCBI's Pathogen Detection program.
- Analyzing genomic resources for key anaerobic spore-forming pathogens.
- Applying these resources to surveillance efforts, linking clinical, environmental, and foodborne reservoirs.
Main Results:
- Genomic resources enable the identification of common and unique factors contributing to pathogen persistence and disease.
- Publicly available data supports outbreak investigations and longitudinal monitoring in public health and food safety.
- Genomic surveillance effectively assesses linkages among various reservoirs.
Conclusions:
- Genomic data sharing is crucial for enhancing international resources and developing impactful applications against spore-forming pathogens.
- These genomic tools are vital for advancing research into pathogenesis, persistence, and virulence.
- Leveraging genomic resources improves strategies for disease prevention, treatment, and overall public health security.
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