Evidence map›Paper›PMID 42238129›Full record

ArticleCureus2026

Comparative Methodological Evaluation of Three Bacteriophage Isolation Methods From Environmental Water Samples.

Mohammod Johirul Islam, Mohammad Kamruzzaman, Fahim Alam Nobel, Md Fakhrul Islam Fahim, Saima Sabrina, Iftekhar Bin Naser

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Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Mohammod Johirul IslamDepartment of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, BGD.
Mohammad KamruzzamanDepartment of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, BGD.
Fahim Alam NobelDepartment of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, BGD.
Md Fakhrul Islam FahimDepartment of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, BGD.
Saima SabrinaDepartment of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, BGD.
Iftekhar Bin NaserDepartment of Biotechnology, School of Life Sciences, BRAC University, Dhaka, BGD.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBacteriophages are ubiquitous viruses that specifically infect and lyse bacterial hosts and have gained increasing attention for applications in biocontrol, phage therapy, food safety, and diagnostics. Efficient isolation of bacteriophages from environmental sources is essential for both research and applied purposes. This study aimed to comparatively evaluate the efficiency of three bacteriophage isolation methods from environmental water samples.

methodsIn this comparative methodological study, 96 environmental water samples were collected from four aquatic sites in Tangail, Bangladesh, over a one-year period (January-December 2025), with sampling conducted twice monthly. Six bacteriophages targeting clinically relevant bacterial hosts were assessed using three isolation methods: direct recovery, polyethylene glycol (PEG)-mediated precipitation, and host-based enrichment. Phage recovery efficiency was compared using Chi-square and Fisher's exact tests, and effect sizes were estimated using odds ratios (ORs) with 95% confidence intervals (CIs).

resultsThe average phage recovery rates were 9.38%, 21.35%, and 47.20% for the direct, PEG, and enrichment methods, respectively. A significant difference in recovery proportions was observed among methods (χ² = 224.1, df = 2, p < 0.0001). Pairwise comparisons demonstrated that the enrichment method yielded significantly higher recovery than the PEG method (OR = 3.29, 95% CI: 2.55-4.26, p < 0.0001) and the direct method (OR = 8.65, 95% CI: 6.28-11.97, p < 0.0001).

conclusionsThe modified enrichment method significantly improves bacteriophage recovery compared to the direct and PEG-based approaches, particularly for low-abundance phages. This method represents a robust and sensitive strategy for isolating bacteriophages from environmental water samples and may support future applications in phage-based therapeutics, environmental surveillance, and microbial control.

Indexed as

bacteriophagedirect methodenrichment methodetecklebsiella pneumoniaepeg methodpseudomonas aeruginosasalmonella typhimuriumshigella sonneivibrio cholerae o1

Identifiers

PMID42238129
PMCPMC13225938

What Socratic holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.