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the claim
Detectable amounts of bacterial DNA circulate in the blood of infected persons
the verdict
SUPPORTED
the evidence backs this
Recorded sources
11 sources for · 0 against
Is it true that detectable amounts of bacterial DNA circulate in the blood of infected persons?
Yes. Multiple clinical and genomic studies confirm that detectable amounts of microbial and bacterial cell-free DNA circulate in the bloodstream of infected or diseased individuals.
Verdict: SUPPORTED · 11 sources for, 0 against · Last checked
The analysis
The retrieved papers consistently demonstrate that bacterial cell-free DNA and microbial DNA can be detected in human blood samples using PCR, sequencing, and metagenomic analyses, directly supporting the claim.
Evidence for · 11
Discusses methods for sequencing pathogen DNA in bloodstream infections.
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Sajib, M., Brunker, K., Oravcová, K., Everest, P., Murphy, M., & Forde, T. L. (2024). Advances in Host Depletion and Pathogen Enrichment Methods for Rapid Sequencing–Based Diagnosis of Bloodstream Infection. doi.org. https://doi.org/10.1016/j.jmoldx.2024.05.008
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More for · 10
Analyzes the presence of circulating bacterial DNA in patient plasma as biomarkers.
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Zhou, H., Liao, J., Leng, Q., Chinthalapally, M., Dhilipkannah, P., & Jiang, F. (2023). Circulating Bacterial DNA as Plasma Biomarkers for Lung Cancer Early Detection. doi.org. https://doi.org/10.3390/microorganisms11030582
Evaluates circulating bacterial DNA and bacterial translocation in colorectal cancer patients.
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Koliarakis, I., Lagkouvardos, I., Vogiatzoglou, K., Tsamandouras, I., Intze, E., Messaritakis, I., Souglakos, J., & Tsiaoussis, J. (2024). Circulating Bacterial DNA in Colorectal Cancer Patients: The Potential Role of Fusobacterium nucleatum. doi.org. https://doi.org/10.3390/ijms25169025
Examines pathogen-derived cell-free DNA fragmentation patterns in bloodstream infection diagnosis.
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Fu, Q., Wang, J., Yue, L., Lu, T., Shi, W., Li, C., Jiang, X., Wang, P., & Chen, F. (2025). Fragmentation patterns of pathogen-derived cell-free DNA as a promising non-invasive biomarker for bloodstream infection diagnosis. doi.org. https://doi.org/10.1016/j.plabm.2025.e00513
Reviews circulating bacterial DNA derived from gut microbiota as a potential cardiovascular biomarker.
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Appleby, S. & Purcell, R. (2025). Circulating bacterial DNA in cardiovascular disease. doi.org. https://doi.org/10.3389/fcvm.2025.1476165
Determines blood bacterial DNA levels in hospitalized COVID-19 patients using PCR targeting 16S rRNA.
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Giacconi, R., D'Aquila, P., Cardelli, M., Piacenza, F., Pierpaoli, E., Sena, G., Rosa, M. d., Bonfigli, A., Galeazzi, R., Cherubini, A., Fedecostante, M., Sarzani, R., Pentima, C. D., Giordano, P., Antonicelli, R., Lattanzio, F., Passarino, G., Provinciali, M., & Bellizzi, D. (2023). Blood circulating bacterial DNA in hospitalized old COVID-19 patients. doi.org. https://doi.org/10.1186/s12979-023-00401-4
Applies microbial DNA metagenomic sequencing to isolate cell-free DNA from human blood samples.
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L, M., A, M., A, L., K, H., A, W., JN, P., RS, K., L, C., Y, I., BJ, P., NR, L., NA, F., ST, J., J, R., & M, K. (2026). An automated and portable platform for rapid cell-free DNA isolation and its application in microbial DNA metagenomic sequencing from human blood samples.. doi.org. https://doi.org/10.1039/d5lc00876j
Examines metagenomic and targeted next-generation sequencing applications for pathogen detection in clinical microbiology.
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R, R., Y, L., Y, L., L, L., J, Y., Z, H., D, L., & P, C. (2026). Metagenomic and Targeted Next-Generation Sequencing in Infectious Disease Diagnostics: Current Applications, Challenges, and Future Perspectives.. doi.org. https://doi.org/10.3390/diagnostics16070991
Analyzes metagenomic next-generation sequencing of plasma microbial cell-free DNA in a clinical setting.
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Almeida, G. G. & Dumm, R. (2024). Clinical Utility of Metagenomic Next-Generation Sequencing of Plasma Microbial Cell-Free DNA: a Single-Center Retrospective Study. doi.org. https://doi.org/10.1093/ajcp/aqae129.375
Compares methods to improve the detection of circulating bacterial DNA and human DNA depletion from blood samples.
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A, W., C, v. W., A, L., & P, S. (2026). Comparison of human DNA depletion and bacterial enrichment methods from large blood volumes to improve bloodstream infection diagnosis.. doi.org. https://doi.org/10.1016/j.mimet.2026.107644
Evaluates plasma microbial cell-free DNA metagenomic sequencing for predicting bloodstream infections.
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J, W., KP, G., Y, I., KJ, A., AA, A., G, M., J, F., L, L., C, K., A, B., Y, S., L, T., V, G., JE, R., C, G., EB, M., & P, T. (2026). Predicting bloodstream infection by plasma cell-free metagenomic sequencing: a prospective cohort study.. doi.org. https://doi.org/10.1016/j.lanmic.2025.101312
What does the evidence say?
The retrieved papers consistently demonstrate that bacterial cell-free DNA and microbial DNA can be detected in human blood samples using PCR, sequencing, and metagenomic analyses, directly supporting the claim.
Receipt History
first checked06 Aug 2026
judged → SUPPORTED · 8306 Aug 2026
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