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Listeria was first discovered around 100 years ago.

Historically, it has occasionally been the cause of meningitis and septicemia, especially in newborn babies. This pathogen received little attention, until the discovery that Listeria monocytogenes could be transmitted to contaminate food. Foodborne outbreaks of listeriosis were reported in North America and Europe in the 1980s, and the incidence of the disease rose steadily year-by-year. In the UK, a peak of nearly 300 cases was reached in 1988 and this is thought to have been the result of a single foodborne outbreak associated with pork pâté.
These outbreaks led the World Health Organization to conclude that L. monocytogenes is an environmental contaminant mainly transmitted to humans through food. Although the incidence of listeriosis is at least 100 times lower than those of other foodborne pathogens, such as Campylobacter and Salmonella, the seriousness of the disease, the high mortality rate (up to 40% in some outbreaks) and the fact that it mainly affects vulnerable sections of the population, has focused a great deal of attention on L. monocytogenes. It has now become the target for much of the microbiological testing carried out by the food industry.

Environmental monitoring

Catalog no. K321

Eliminate false positives by using our confirmatory Listeria spp. environmental media. Recommended for use with environmental samples from food processing environments or food contact surfaces as a selective and differential screening medium to detect and confirm the presence of Listeria spp. after cleaning.

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Catalog no. SRK45

D/E Neutralizing Broth is recommended for the detection of microorganisms found on surfaces. Neutralizes a broad spectrum of antiseptics and disinfectants, and detects organisms remaining after sanitation treatment.

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Catalog no. SRK05

0.85% Saline is recommended for the detection of microorganisms found on surfaces. Osmotically neutral transport solution. Contains no neutralizing agents or growth factors, therefor is recommended for enumeration methods.

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Catalog no. SRK15

Neutralizing Buffer is designed to neutralize chlorine, iodine, and quaternary ammonium disinfectants, making this the perfect medium to collect and enumerate microorganisms from environmental surfaces and equipment.

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Monitoring System

Catalog no. ETOUCH

An advanced monitoring system that collects, analyzes and reports data from a variety of long-trusted quality tests, providing rapid and accurate sanitation verification data. Can test for ATP and pathogenic microorganisms.

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Catalog no. US2020

A user-friendly, all-in-one ATP sampling test used with Hygiena luminometers.

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Catalog no. ILC100

An easy-to-use, self-contained, environmental Listeria species test.

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Media and rapid tests for pathogen detection

Catalog no. G317

HardyCHROM™ Listeria is a chromogenic medium recommended for the selective isolation, differentiation, and enumeration of Listeria monocytogenes from food and environmental samples by colony color and appearance.

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Catalog no. LS100

For the selective growth, presumptive identification, and enumeration of Listeria spp. Growing colonies will appear blue.

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Catalog no. G46

For the selective isolation and differentiation of Listeria monocytogenes.

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Catalog no. K183

For use as a supplement for Buffered Listeria Enrichment Broth Base (BAM Formulation).

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Catalog no. Q10

Motility Test Medium with and without Triphenyltetrazolium Chloride (TTC) is recommended for the detection of motility in gram-negative enteric bacilli. TTC is added to enhance visualization of bacterial growth.

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Catalog no. K98

Recommended for the selective enrichment of Listeria spp. in foods and environmental samples.

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Catalog no. C7800

For the cultivation of Listeria spp. from food. Other volumes of dehydrated BLEB available in our online catalog.

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Catalog no. F48

A rapid slide latex test for the identification of motile Listeria spp. on solid selective media. Suitable for food testing. Results in two minutes.

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Catalog no. MID67

A complete microwell format identification panel for identifying all Listeria spp., no additional materials required. Substrates included conform to all international standards. Enhanced built-in hemolysis test, no blood plate required. AOAC-RI validated.

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Catalog no. CM877B

For the isolation and cultivation of Listeria species from foods.

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Catalog no. U153

For the selective cultivation of Listeria monocytogenes.

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Catalog no. K108

For neutralizing and evaluating the efficacy of antiseptics and disinfectants.

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Catalog no. C6060

For the selective isolation and cultivation of Listeria monocytogenes.

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Catalog no. 0814E2CRM

The Epower™ microorganisms are lyophilized, quantitative microorganism preparations to be used in industrial laboratories for quality control purposes.

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Catalog no. 0687E2

The Epower™ lyophilized and assayed control microorganism pellets add convenience to special projects and internal proficiency plans.

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Catalog no. 0802K

A ready-to-use swab that contains a single lyophilized pellet of a single microorganism strain.

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Automation and lab equipment

Catalog no. CDR1

A fast, easy, and accurate way to read and record your CompactDry™ results. The Wizard™ has selectable modes in the configuration menu designed to read the different types of CompactDry™ plates.

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The Trio.Bas™ instruments utilize the impaction method of air sampling. The air, passing through an aspirating head, impacts onto an appropriate agar plate that collects bacteria or other organic substances possibly present in the sampled area.

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The Dilugent Shaker uses orbital rotation to make sure each dilution is thoroughly vortexed. It is activated by either an hands-free optical sensor or the optional foot pedal. The 42 LED indicators light each cup, letting you easily see what dilution well you are in.

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Pre-filled, sterile and ready-to-use dilution cups. These save time and standardize results. To pair with the Dilugent Shaker

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Personal Protective Equipment (PPE)

Catalog no. 20180016

  • N95 Mask by NIOSH
  • V-Fold
  • Silicone Smart Seal Gasket for secure sealing
  • Two easily adjustable straps to ensure a comfortable fit
  • Durable material

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Catalog no. FEL110B

  • Maximum coverage
  • Latex & fiberglass free
  • Non-irritant
  • Odorless
  • PVC nose piece for comfortable wear

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Catalog no. MD30331

  • Latex Free
  • Made in a FDA registered facility
  • Well suited for protection against COVID-19 and other pathogens.
  • Ideal for healthcare and laboratory workers.
  • Made from PETG.
  • Visors are anti-fogging.
  • Once size fits most.
  • Includes a comfortable forehead cushion.

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Multiple Sizes Available

  • Comfortable, non-woven fabric
  • Made from triple layer, hot-rolled, spunbound material (SMS)
  • Two waist pockets
  • One breast pocket
  • Secure snap buttons
  • Soft, knit cuffs on collar and wrists
  • Dust proof

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