Microbiology and indicators
Definition
Escherichia coli is a thermotolerant coliform bacterium used worldwide as an indicator of recent fecal contamination. Its presence in drinking water generally requires investigation and corrective action under the applicable framework.
Why it matters
Useful for selecting the right method, product family, sampling point, report or traceability workflow in water quality programs.
- Related AquaVerify product: INDICA / ENUMERA
- Related sector: Municipal, alimentación e instalaciones
Related resources
Explore technical guides, AquaVerify products, sector applications and authorized support connected with this definition.
Related terms
- Adenovirus Adenovirus is an enteric virus that can persist under certain environmental conditions and is used in some contexts as a reference for evaluating viral persistence in water.
- Viable bacteria Viable bacteria are microorganisms capable of remaining alive and, depending on conditions, growing or forming colonies detectable by culture methods.
- Bacteriophage A bacteriophage is a virus that infects specific bacteria and replicates within them. In water quality, bacteriophages are used as viral models or indicators to study fecal contamination, treatment behaviour and microbiological barrier performance.
- Biofilm A biofilm is a microbial community attached to a surface and protected by an extracellular matrix. In water networks it can act as a reservoir of microorganisms and contribute to recontamination.
- Microbial load Microbial load is the level of microorganisms present in a sample or system. It can be expressed in different units depending on the method and organism evaluated.
- Host strain A host strain is the bacterium used as the host to detect or enumerate bacteriophages in culture methods. Its selection is critical for assay sensitivity and result interpretation.
- Total coliforms Total coliforms are a broad group of indicator bacteria that may occur in soil, water or fecal environments. They are used to assess system integrity, treatment effectiveness and possible operational issues.
- F-RNA coliphages F-RNA coliphages are a subgroup of F-specific coliphages with an RNA genome. They can be used in fecal contamination and viral behaviour studies depending on method, matrix and program objective.
FAQ
Definition: Escherichia coli (E. coli)
Escherichia coli is a thermotolerant coliform bacterium used worldwide as an indicator of recent fecal contamination. Its presence in drinking water generally requires investigation and corrective action under the applicable framework.
Why it matters: Escherichia coli (E. coli)
Useful for selecting the right method, product family, sampling point, report or traceability workflow in water quality programs.
