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Paleopathology and Ancient Diseases · Journal article
Diversity · July 25, 2026
Early or partial results. Treat as a signal, not a conclusion.
This is a descriptive archaeological metagenomic study characterizing microbial diversity and functional genes (virulence, antimicrobial resistance) preserved in petrous bone and sediment samples from two contexts within a Hellenistic–Roman city. The authors found differential microbial profiles and gene abundance between sites and caution that detected taxa should be interpreted within depositional context rather than as direct evidence of ancient disease.
Descriptive comparative metagenomic study. Petrous bone and sediment samples from the Bath–Gymnasium complex (two archaeological contexts: RH1MK1 [Tepidarium] and SRH1PPG [Palaestra]) of Stratonikeia, a Hellenistic–Roman city in western Anatolia.. Intervention: High-throughput shotgun metagenomic sequencing and bioinformatic analysis of ancient microbial DNA. Compared with: Comparison between two archaeological contexts (RH1MK1 vs. SRH1PPG) and relative to other Anatolian archaeological sites. Stratonikeia, western Anatolia; comparative reference to other Anatolian archaeological sites.
RH1MK1 (Tepidarium) samples exhibited greater microbial diversity and higher relative abundance of bacterial taxa with pathogenic potential (Escherichia coli, Shigella flexneri, Vibrio cholerae, Clostridioides difficile) compared with SRH1PPG (Palaestra) samples Virulence-associated genes (Shiga toxin, cholera toxin, type III secretion system) and antimicrobial resistance genes were more abundant in RH1MK1 Comparative analyses revealed both shared and site-specific microbial profiles relative to other Anatolian archaeological sites
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
This work has no direct clinical application. It demonstrates the feasibility of shotgun metagenomics for ancient microbial characterization but provides no actionable inference about ancient disease burden, epidemiology, or antimicrobial resistance evolution.
Descriptive metagenomic characterization of ancient microbial DNA from two archaeological sites with no quantitative comparison to establish clinical or epidemiological significance, and explicit source caveat against inferring disease from findings.
As stated by the source record.
This work has no direct clinical application. It demonstrates the feasibility of shotgun metagenomics for ancient microbial characterization but provides no actionable inference about ancient disease burden, epidemiology, or antimicrobial resistance evolution.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
What is missing. This record has no reported figures. That is a gap in the analysis, not a judgement about the study.
Ancient DNA and metagenomic studies provide valuable insights into microbial evolution, host–microbe interactions, and the ecology of ancient microbial communities; however, data from urban archaeological contexts remain limited. This study investigated microbial DNA preserved in paired petrous bone and adjacent sediment samples recovered from the Bath–Gymnasium complex of Stratonikeia, a Hellenistic–Roman city in western Anatolia, to characterize microbial diversity and functional gene profiles in an archaeological context. DNA was extracted under contamination-controlled conditions and analysed using high-throughput shotgun metagenomic sequencing. Bioinformatic analyses included taxonomic profiling, microbial diversity assessment, differential abundance analysis, and characterization of virulence-associated and antimicrobial resistance-related genes. The RH1MK1 (Tepidarium) samples exhibited greater microbial diversity and a higher relative abundance of bacterial taxa with recognized pathogenic potential, including Escherichia coli, Shigella flexneri, Vibrio cholerae, and Clostridioides difficile, compared with the SRH1PPG (Palaestra) samples. Virulence-associated genes, including Shiga toxin-, cholera toxin-, and type III secretion system-related sequences, together with antimicrobial resistance-associated genes, were more abundant in RH1MK1, consistent with differences in depositional and microenvironmental conditions between the two archaeological contexts. Comparative analyses revealed both shared and site-specific microbial profiles relative to other Anatolian archaeological sites. These findings demonstrate the potential of shotgun metagenomics for investigating preserved microbial DNA in archaeological materials while emphasizing that the detected microbial taxa and functional genes should be interpreted within their archaeological and depositional context rather than as direct evidence of ancient infectious diseases or epidemic events.
Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.