ArticleThe Journal of infectious diseases2025
Bacterial Genomics for National Antimicrobial Resistance Surveillance in Cambodia.
Article in The Journal of infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Operationalising Genomic Surveillance for Antimicrobial Resistance in Low- and Middle-Income Countries: A One Health Perspective from Bangladesh.Microorganisms · 2026Review
- Prevalence and characterization of third-generation cephalosporin, carbapenem and colistin-resistant Enterobacterales isolated from clinical samples in Cambodia.New microbes and new infections · 2025Article
- Genomic insights into extended-spectrumJournal of medical microbiology · 2025Article
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Authors and funding
26 authors.
Funding
Abstract
backgroundAntimicrobial resistance (AMR) surveillance in low- and middle-income countries (LMICs) often relies on poorly resourced laboratory processes. Centralized sequencing was combined with cloud-based, open-source bioinformatics solutions for national AMR surveillance in Cambodia.
methodsBlood cultures growing gram-negative bacteria were collected at 6 Cambodian hospitals (January 2021 to October 2022). Isolates were obtained from pure plate growth and shotgun DNA sequencing performed in country. Using public nucleotide and protein databases, reads were aligned for pathogen identification and AMR gene characterization. Multilocus sequence typing was performed on whole-genome assemblies and haplotype clusters compared against published genomes.
resultsGenes associated with acquired resistance to fluoroquinolones were identified in 59%, trimethoprim/sulfamethoxazole in 45%, and aminoglycosides in 52% of 715 isolates. Extended-spectrum β-lactamase encoding genes were identified in 34% isolates, most commonly blaCTX-M-15, blaCTX-M-27, and blaCTX-M-55 in Escherichia coli sequence types 131 and 1193. Carbapenemase genes were identified in 12% isolates, most commonly blaOXA-23, blaNDM-1, blaOXA-58, and blaOXA-66 in Acinetobacter species. Phylogenetic analysis revealed clonal strains of Acinetobacter baumannii, representing suspected nosocomial outbreaks, and genetic clusters of quinolone-resistant typhoidal Salmonella and extended-spectrum β-lactamase E. coli cases suggesting community transmission.
conclusionsWith accessible sequencing platforms and bioinformatics solutions, bacterial genomics can supplement AMR surveillance in LMICs.
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