Direct sequencing technologies for bacterial sexually transmitted infections
Amy Jennison A * , Shivani Pasricha B and Francesca Azzato B CA
B
C
Assoc. Prof. Amy Jennison is the chief scientist of the Public Health Microbiology laboratory of the Queensland Department of Health, which is Queensland’s reference laboratory responsible for the molecular surveillance of notifiable bacterial pathogens and characterisation of public health related outbreaks. Dr Jennison has led the laboratory in the application of whole-genome sequencing for pathogen surveillance and has a particular interest in genomic analysis for understanding environmental threats from emerging pathogens and addressing antimicrobial resistance (AMR) issues in bacterial pathogens including Neisseria gonorrhoeae. |
Dr Shivani Pasricha is a microbiologist and laboratory head in the Department of Infectious Diseases of The University of Melbourne. Using molecular and genomic approaches, her research aims to improve the detection, prevention and surveillance of sexually transmitted infections (STIs). Her current research includes developing cutting-edge clustered regularly interspaced short palindromic repeats (CRISPR)-diagnostics for the point-of-care detection of STIs and AMR. |
Francesca Azzato is the section head of the Bacteriology, Victorian Mycology and Parasitology reference laboratories at the Victorian Infectious Diseases Reference Laboratory. She has expertise in the design, evaluation and implementation of novel molecular diagnostic assays. Currently, she is completing a PhD focusing on STI genomics and is involved in numerous projects, which focus on evaluating the use of new molecular methods to improve the diagnosis of bacterial and parasitic pathogens from clinical samples. |
Abstract
There is an important role for direct sequencing of patient samples to complement traditional culture-based methods for bacterial sexually transmitted infections (STIs), effectively overcoming limitations posed by fastidious or unculturable pathogens such as Neisseria gonorrhoeae, Treponema pallidum, Mycoplasma genitalium and Chlamydia trachomatis. Metagenomic techniques can enable profiling of antimicrobial resistance (AMR), strain typing and microbiome analysis in the absence of a cultured isolate, contributing critical information to understanding epidemiological trends and guiding targeted therapies. Despite significant advancements, challenges persist, such as cost, bioinformatics complexity and ethical considerations. The paper discusses current applications, technological innovations, and future prospects for integrating metagenomics into routine bacterial STI surveillance, emphasising the need to identify cost and time-effective workflows and enhanced accessibility of genomic data. By addressing these challenges, direct sequencing promises to fill critical gaps in AMR monitoring and pathogen typing, offering new avenues for enhancing public health strategies in combating bacterial STIs worldwide.
Keywords: AMR, antimicrobial resistance, direct sequencing, disease surveillance, metagenomics, public health, sexually transmitted infections, STI.
Assoc. Prof. Amy Jennison is the chief scientist of the Public Health Microbiology laboratory of the Queensland Department of Health, which is Queensland’s reference laboratory responsible for the molecular surveillance of notifiable bacterial pathogens and characterisation of public health related outbreaks. Dr Jennison has led the laboratory in the application of whole-genome sequencing for pathogen surveillance and has a particular interest in genomic analysis for understanding environmental threats from emerging pathogens and addressing antimicrobial resistance (AMR) issues in bacterial pathogens including Neisseria gonorrhoeae. |
Dr Shivani Pasricha is a microbiologist and laboratory head in the Department of Infectious Diseases of The University of Melbourne. Using molecular and genomic approaches, her research aims to improve the detection, prevention and surveillance of sexually transmitted infections (STIs). Her current research includes developing cutting-edge clustered regularly interspaced short palindromic repeats (CRISPR)-diagnostics for the point-of-care detection of STIs and AMR. |
Francesca Azzato is the section head of the Bacteriology, Victorian Mycology and Parasitology reference laboratories at the Victorian Infectious Diseases Reference Laboratory. She has expertise in the design, evaluation and implementation of novel molecular diagnostic assays. Currently, she is completing a PhD focusing on STI genomics and is involved in numerous projects, which focus on evaluating the use of new molecular methods to improve the diagnosis of bacterial and parasitic pathogens from clinical samples. |
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