Phylogenomic Pipeline Validation for Foodborne Pathogen Disease Surveillance

Area of Science:

• Microbiology
• Genomics
• Public Health

Background:

• The United States is transitioning foodborne pathogen surveillance from pulsed-field gel electrophoresis (PFGE) to whole-genome sequencing (WGS).
• WGS necessitates new analytical tools, some unfamiliar to public health and regulatory bodies.
• Variations in WGS data collection and analysis across agencies hinder international collaboration.

Purpose of the Study:

• To review the historical use of WGS in pathogen tracking.
• To summarize current efforts in harmonizing WGS analysis pipelines for public health surveillance.
• To ensure the validation and comparability of WGS data across different analytical approaches.

Main Methods:

• Review of historical applications of WGS for pathogen surveillance.
• Summary of ongoing national and international harmonization initiatives for WGS data analysis.
• Discussion of validation strategies for phylogenomic pipelines.

Main Results:

• WGS offers a more advanced approach to pathogen surveillance compared to PFGE.
• Significant efforts are underway to standardize WGS data analysis workflows.
• Development of validation tools is key to ensuring data integrity and comparability.

Conclusions:

• Harmonization of WGS analysis is essential for effective global public health surveillance.
• Standardized and validated WGS data will improve international collaboration and outbreak response.
• The adoption of harmonized WGS methods will enhance the reliability and comparability of pathogen tracking worldwide.