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Multilocus variable-number tandem-repeat method for typing Salmonella enterica serovar Newport.
Margaret A Davis1, Katherine N K Baker, Douglas R Call
1Washington State University, Department of Veterinary Microbiology and Pathology, 402 Bustad Hall, P.O. Box 647040, Pullman, WA 99164-7040, USA. madavis@vetmed.wsu.edu
Journal of Clinical Microbiology
|April 24, 2009
Summary
Salmonella enterica serovar Newport infections are rising in humans and animals. A new, highly discriminatory multilocus variable-number tandem-repeat analysis (MLVA) method was developed to better track this specific Salmonella Newport strain.
Area of Science:
- Microbiology and Infectious Diseases
- Food Safety and Public Health
Background:
- Increasing prevalence of Salmonella enterica serovar Newport infections in both human and animal populations.
- Need for improved molecular typing methods to understand transmission dynamics of this emerging pathogen.
Purpose of the Study:
- To develop and validate a highly discriminatory multilocus variable-number tandem-repeat analysis (MLVA) for Salmonella serovar Newport.
- To provide a tool for enhanced epidemiological surveillance of Salmonella serovar Newport.
Main Methods:
- Design and optimization of MLVA assay targeting specific variable-number tandem-repeat loci in Salmonella serovar Newport.
- Testing the assay's discriminatory power using a diverse collection of Salmonella serovar Newport isolates.
Main Results:
- Successful development of a novel MLVA method demonstrating high discriminatory capacity for Salmonella serovar Newport.
- The MLVA effectively distinguishes between different genetic profiles within Salmonella serovar Newport.
- This method is valuable for tracking outbreaks and understanding the population structure of Salmonella serovar Newport.
Conclusions:
- The developed MLVA provides a powerful tool for the molecular epidemiology of Salmonella serovar Newport.
- Enhanced surveillance capabilities can aid in controlling the spread of this increasingly common Salmonella serovar.
