Related Experiment Video
Updated: May 15, 2026

06:55
A High-throughput Platform for the Screening of Salmonella spp./Shigella spp.
Published on: November 7, 2018
Using next generation sequencing to tackle non-typhoidal Salmonella infections
John Wain1, Karen H Keddy, Rene S Hendriksen
1Norwich Medical School, University of East Anglia, Norwich, UK. j.wain@uea.ac.uk
Journal of Infection in Developing Countries
|January 18, 2013
Summary
Multidrug-resistant Salmonella Typhimurium ST313 is emerging in Africa, primarily spreading human-to-human and causing invasive disease. Further research is needed to rule out animal reservoirs and enhance frontline laboratory surveillance for all Salmonella infections.
Area of Science:
- Microbiology
- Epidemiology
- Public Health
- Genomics
Background:
- Next-generation sequencing (NGS) is revolutionizing the analysis of bacterial isolates from global epidemics.
- Multidrug-resistant (MDR) Salmonella Typhimurium ST313 is a significant public health concern, particularly in sub-Saharan Africa.
- Understanding the epidemiology and transmission dynamics of MDR Salmonella is crucial for effective public health interventions.
Purpose of the Study:
- To review current knowledge on non-typhoidal Salmonella in sub-Saharan Africa.
- To discuss the epidemiology and transmission of Salmonella Typhimurium ST313.
- To identify remaining challenges in Salmonella surveillance and control.
Main Methods:
- Literature review of studies on Salmonella in sub-Saharan Africa.
- Analysis of data on Salmonella Typhimurium ST313 emergence and spread.
- Discussion of genomic and epidemiological findings.
Main Results:
- Salmonella Typhimurium ST313 exhibits predominantly human-to-human transmission in Africa.
- Invasive disease is strongly associated with this MDR strain.
- The potential role of animal reservoirs requires further investigation.
Conclusions:
- NGS has transformed our understanding of bacterial pathogens like Salmonella.
- Continued research is essential to elucidate potential animal reservoirs and improve frontline laboratory capacity for Salmonella surveillance in sub-Saharan Africa.
- Effective control strategies require a comprehensive understanding of transmission dynamics.
Related Concept Videos
Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Next-generation Sequencing
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Sanger Sequencing
DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
