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the claim

Selective growth media can contain antibiotics to ensure that only resistant organisms grow.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that selective growth media can contain antibiotics to ensure that only resistant organisms grow?

Yes. Selective growth media frequently incorporate antibiotics to inhibit susceptible strains and specifically isolate resistant organisms from complex samples.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The claim is a specific, factual microbiological principle that selective growth media can incorporate antibiotics to ensure resistant organisms grow. Multiple retrieved studies (such as 3, 8, and 9) describe using antibiotic-supplemented selective media precisely for this purpose, recovering resistant organisms or determining susceptibility profiles. Therefore, the evidence strongly supports the claim.

Evidence for · 3
Multisite Colonization Ecology of Multidrug-Resistant and Commensal Bacteria Among Cardiovascular Outpatients: A Cross-Sectional Study from Cairo, Egypt.
2026
The study used antimicrobial-supplemented selective media to isolate organisms with reduced antimicrobial susceptibility from patient specimens.
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Y, A., DH, A., HM, G., HAE, S., & AMH, K. (2026). Multisite Colonization Ecology of Multidrug-Resistant and Commensal Bacteria Among Cardiovascular Outpatients: A Cross-Sectional Study from Cairo, Egypt.. doi.org. https://doi.org/10.3390/antibiotics15090823

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More for · 2
Occurrence of Phenotypic Multidrug-Resistant <i>E. coli</i> in Kentucky (USA) Surface Waters and Exploration of Sentinel Antibiotics for One Health Surveillance.
2026
The researchers utilized selective differential media with and without tetracycline supplementation to target and recover resistant E. coli.
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JW, M. & ST, A. (2026). Occurrence of Phenotypic Multidrug-Resistant <i>E. coli</i> in Kentucky (USA) Surface Waters and Exploration of Sentinel Antibiotics for One Health Surveillance.. doi.org. https://doi.org/10.3390/antibiotics15070709

A sensitive and reduced-cost culture medium for recovery of <i>Clostridioides difficile</i> isolates with reduced fidaxomicin susceptibility from stool.
2026
The study demonstrated that supplementing culture media with fidaxomicin successfully provides a selective method to screen for and recover Clostridioides difficile isolates with reduced susceptibility.
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CE, K., JL, C., SN, R., AL, J., M, H., H, C., C, J., & CJ, D. (2026). A sensitive and reduced-cost culture medium for recovery of <i>Clostridioides difficile</i> isolates with reduced fidaxomicin susceptibility from stool.. doi.org. https://doi.org/10.1128/jcm.00068-26

What does the evidence say?

The claim is a specific, factual microbiological principle that selective growth media can incorporate antibiotics to ensure resistant organisms grow. Multiple retrieved studies (such as 3, 8, and 9) describe using antibiotic-supplemented selective media precisely for this purpose, recovering resistant organisms or determining susceptibility profiles. Therefore, the evidence strongly supports the claim.

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