ARE Labs / Testing scope

Biological Organisms We Test

Explore bacteria, spore-formers, mold, yeast, and bacteriophages in ARE Labs testing scope. Find an organism below, then discuss how it fits your product, test conditions, and the question your study needs to answer.

44Organisms listed
7Organism groups
Organism + strain + study

A biological challenge starts with more than a species name. We define the organism, strain, challenge form, and measurement endpoint together so the study answers your question.

Find an organism

The organism explorer

Study design ↓

44 of 44 organisms · 7 of 7 groups

Gram-positive bacteria

15
  • Staphylococcus epidermidisS. epidermidisVegetative bacterial cells
  • Staphylococcus aureusS. aureusVegetative bacterial cells
  • Staphylococcus capitisS. capitisVegetative bacterial cells
  • Staphylococcus capraeS. capraeVegetative bacterial cells
  • Streptococcus pyogenesS. pyogenesVegetative bacterial cells
  • Streptococcus salivariusS. salivariusVegetative bacterial cells
  • Streptococcus downeiS. downeiVegetative bacterial cells
  • Streptococcus vestibularisS. vestibularisVegetative bacterial cells
  • Enterococcus faecalisE. faecalisVegetative bacterial cells
  • Enterococcus faeciumE. faeciumVegetative bacterial cells
  • Listeria innocuaL. innocuaVegetative bacterial cells
  • Listeria monocytogenesL. monocytogenesVegetative bacterial cells
  • Micrococcus luteusM. luteusVegetative bacterial cells
  • Paenarthrobacter nicotinovoransArthrobacter nicotinovoransVegetative bacterial cells
  • Corynebacterium sp.Corynebacterium; species specified with the studyVegetative bacterial cells

Gram-negative bacteria

10
  • Escherichia coliE. coliVegetative bacterial cells
  • Klebsiella aerogenesK. aerogenes; formerly Enterobacter aerogenesVegetative bacterial cells
  • Klebsiella pneumoniaeK. pneumoniaeVegetative bacterial cells
  • Pantoea agglomeransErwinia herbicolaVegetative bacterial cells
  • Salmonella enterica serovar TyphimuriumSalmonella TyphimuriumVegetative bacterial cells
  • Pseudomonas fluorescensP. fluorescensVegetative bacterial cells
  • Pseudomonas syringaeP. syringaeVegetative bacterial cells
  • Pseudomonas aeruginosaP. aeruginosaVegetative bacterial cells
  • Enterobacter cloacae subsp. cloacaeE. cloacaeVegetative bacterial cells
  • Brevundimonas diminutaB. diminutaVegetative bacterial cells

Acid-fast bacteria

4
  • Mycobacterium smegmatisM. smegmatisAcid-fast bacterium
  • Mycobacterium bovisM. bovisAcid-fast bacterium; strain specified for the study
  • Mycobacterium terraeM. terraeAcid-fast bacterium
  • Mycobacterium chimaeraM. chimaera; Mycobacterium intracellulare subsp. chimaeraAcid-fast bacterium

Spore-forming bacteria

4
  • Bacillus subtilisB. subtilisBacterial endospores or vegetative cells, as specified
  • Bacillus atrophaeusB. atrophaeusSpore-forming bacterium; challenge form selected for the study
  • Bacillus thuringiensisB. thuringiensisSpore-forming bacterium; challenge form selected for the study
  • Clostridium sp.Clostridium; species specified with the studyBacterial endospores

Mold

2
  • Aspergillus brasiliensisA. brasiliensisMold spores
  • Aspergillus nigerA. nigerMold spores

Yeast

2
  • Candida albicansC. albicansYeast cells
  • Candida aurisC. aurisYeast cells

Bacteriophages

7
  • MS2 bacteriophageMS2Non-enveloped RNA virus surrogate
  • Phi X174 bacteriophagePhi X; Phi-X174; phiX174Non-enveloped DNA virus surrogate
  • Phi6 bacteriophagePhi-6; phi 6; Φ6Enveloped bacteriophage
  • Qβ bacteriophageQbeta; Q beta; Q-betaBacteriophage
  • PP7 bacteriophagePP7Bacteriophage
  • T-1 bacteriophageT-1 phageBacteriophage
  • PMB12 bacteriophagePMB12Bacteriophage
Study design

Match the organism to your study

Airborne challenges

For room and duct studies, define the device, operating mode, airflow, exposure time, and biological endpoint. Sampling locations and untreated controls help distinguish changes associated with the device from natural losses during the study. The selected organism must suit both the challenge and the recovery method.

Surface and material studies

For a treated surface, textile, or liquid formulation, begin with the material and intended contact conditions. Organism selection, contact time, recovery, and controls are scoped for that application. An organism used in an airborne study is not automatically the right choice for a surface or biofilm study.

Detector challenges

For biological detectors and air monitors, identify the response you want to evaluate and the reference measurement needed alongside it. A detector signal, a particle count, and a viable microbial result describe different properties. Choose the challenge and endpoint together before comparing device outputs.

Choose a panel that answers your question

Start with the product and the decision the results will support. A room air cleaner, an in-duct device, a treated surface, and a biological detector expose organisms in different ways. Share the intended use, operating conditions, and proposed claim so we can discuss an organism panel that fits the study. A longer organism list is useful only when each addition answers a relevant question.

The directory brings together selected organisms from our laboratory stock records and species lists. It includes bacterial cells, spore-forming bacteria, mold, yeast, and bacteriophages. These groups are not interchangeable challenges. Specify the form you need: a Bacillus species may be evaluated as vegetative cells or as endospores. The agreed study plan identifies which form is used.

If you already have a required strain, include its culture-collection identifier or other traceable designation with your request. We confirm the identity and challenge form in the study plan. A species name in this directory does not identify a particular strain or mean that every strain of that species is available for every test configuration.

Understand what the result will measure

Bacteriophages are viruses that infect bacteria. MS2 and Phi X174 appear here as virus surrogates used in ARE Labs studies; Phi X174 is called Phi X in the published study. Results from a surrogate study remain specific to the tested organism and conditions. They should not be read as direct evidence against an untested human virus or as a universal ranking of disinfectant resistance.

The measurement endpoint matters as much as the organism. Recovery of culturable bacteria or fungi, recovery of infectious bacteriophage, detection of genetic material, and measurement of airborne particles answer different questions. Tell us whether you need to evaluate microbial reduction, physical removal, detector response, or another outcome. The protocol then defines the measurement, controls, and reporting basis needed to interpret the result.

For an air-treatment comparison, the result needs to be reported alongside the time and sampling conditions. Background loss, collection efficiency, and recovery can affect the concentration observed during a trial. A useful comparison documents those conditions and evaluates the device against the appropriate control. The organism list is a starting point; the agreed protocol establishes what will be tested and reported.

Services and applications

Choose your testing path

Practical questions

Q.Is this the complete organism list?
A.No. These are selected organisms from ARE Labs stock and species records. If you need another organism, send its name, strain if known, and intended use. We will confirm suitability and availability while scoping the study.
Q.Do you need the exact strain?
A.Include the strain or culture-collection identifier if your method or claim requires one. If you do not have a specified strain, we can discuss organism selection. The study plan records the identity and challenge form used.
Q.Does bacteriophage testing establish performance against human viruses?
A.A bacteriophage is a virus that infects bacteria. A surrogate study reports results for the tested organism under the specified conditions. It does not by itself establish efficacy against an untested human virus.
Q.Can I use the same organism panel for air and surface testing?
A.We review the panel for each application. Exposure, contact conditions, sampling, and recovery differ between air and surface studies. A suitable organism for one configuration may not answer the question posed by another.
Q.What should I send to scope a biological study?
A.Send your product or material, target organism and strain if known, intended exposure, any required method, and the decision or claim the results must support. These details help us discuss a suitable panel and measurement approach.
Next step

Discuss testing context

Use the article as a starting point, then bring product, device, formulation, claim, or regulatory context into a project scoping conversation.

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