Sample Transport ☆ Culture ☆ Chromogenic Result

InTray® COLOREX™ GBS

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Chromogenic differentiated result, in your clinic.

InTray COLOREX GBS agar is a chromogenic medium for differentiation and isolation of pure cultures of Streptococcus agalactiae (GBS). The test can be performed with samples of composed of mixed populations of bacteria, e.g., vaginal or rectal swabs, urine, feces, etc. COLOREX GBS is not intended for use in the identification of colonization with GBS to aid in the prevention and control of GBS in healthcare settings. COLOREX GBS is not intended to diagnose GBS infections, guide or monitor treatment for infections, or provide susceptibility results. Sub-culture is necessary for bacterial identification and susceptibility testing.

With COLOREX GBS medium, S. agalactiae, including non-haemolytic strains are distinguishable by colony color. High sensitivity and specificity of the medium lead to a higher detection rate of S. agalactiae spp. Selective agents inhibit the growth of Gram-positive organisms. Artificial substrates are metabolized by specific microbial enzymes liberating insoluble chromogenic compounds. S. agalactiae species produce deep pink to mauve colored colonies. Bacteria other than S.agalactiae spp. produce blue colonies or are colorless or inhibited. Enrichment of original samples in Todd Hewitt or LIM broth is possible and may give best results.

Specifications

Product Principle

Combine collection, culture, result and microscopic observation in one IVD device.
Highly selective prepared media in a device designed for in-vitro specimen transport and incubation.
Rapid presumptive-positive diagnosis without re-plating. InTray can be placed directly on microscope stage
Fully enclosed device with Tyvek® air filtration prevents contamination and exposure, post-collection.

Simple Convenience

InTray is designed for specimen collection and inoculation at point-of-care
Saves time, material cost and waste, reducing exposure to collected sample
Place directly on the microscope tray for observation through the cassette’s clear anti-fog window
Visual chromogenic differentiation

Accurate Detection

Test Strain	ATCC #	Expected Result
S. agalatiae	12386	Mauve
S. agalactiae	13813	Mauve
E. faecalis	29212	Metallic blue
E. coli	25922	Inhibited
C. albicans	60193	Inhibited

Time to Result

Incubate at 35-37°C for 18-24 hours under ambient atmosphere.

Colonies of S. agalactiae spp. appear deep pink to mauve. Non S. agalactiae bacteria are blue, colorless or are inhibited. Latex agglutination testing can be performed directly from the colony.

Storage

InTray COLOREX GBS has a 6-month expiration date from the date of manufacturing.

Upon receipt, store InTray COLOREX GBS under refrigeration (2-8°C). Medium can be kept for one day at ambient temperature. Protect media from exposure to light, excessive heat, moisture and freezing. Do not open until ready to use. Do not use if the medium shows signs of deterioration, shrinking, cracking, discoloration or contamination

Specimen

Vaginal swab
Rectal swab
Urine
Feces

Features and Benefits

Shelf-life and durability

Durable and stackable for incubation
No re-plate or wet mount
Once inoculated, no other culture preparation is required... saving time and money.
Designed for specimen collection/inoculation at point-of-care, InTray is a fully enclosed system for transport, incubation, result and microscopic observation.
The sealed prepared media device is selectively formulated for accurate detection and identification of pathogens and non-pathogens
Visual chromogenic differentiation and/or selective production of distinctive colony growth with typical identifiable morphology

Key Features

Fully enclosed cassette with air filtration system
Nutritive culture colony growth medium, formulated for selectivity and specificity
Anaerobic or aerobic system available (on select products)