Chromagar

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CHROMagar™ Salmonella

For detection and isolation of Salmonella spp.,
including S. typhi and S. paratyphi
in clinical specimens.

Medium Performance

Easy reading: intense mauve colony colours for better identification.
Greater Specificity / Less workload: conventional media for the detection of Salmonella by H2S character have very poor specificity resulting in numerous false positives (Citrobacter, Proteus, etc.) among the rare, real positive Salmonella. The workload for unnecessary examination of suspect colonies is so heavy that real positive Salmonella colonies might often be overlooked in routine testing. Because of their poor specificity, conventional media require a tedious examination of at least 10 colonies per suspected sample.
On the contrary, CHROMagar Salmonella eliminates most of those false positives and allows technicians to focus on the real contaminated samples.
High sensitivity, leading to a higher detection rate of Salmonella:
Salmonella sensitivity: 95%*
Specificity: 88,9%* compared to 78% with Hektoen Agar.
*Specificity and sensitivity from scientific study: “Comparison of CHROMagar Salmonella medium and Hektoen Enteric Agar for isolation of Salmonellae from stool samples.” Gaillot O. et al. 1999. Journal of Clinical Microbiology, 37 : 762-765
Dramatic decrease of the workload:
Number of useless confirmatory tests is minimized since there is no need of duplicating them.

Typical Appearance of microrganisms
Salmonella → mauve
Other bacteria → blue, colourless, or inhibited.

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CHROMagar™ Candida Plus

For detection and differentiation of major clinical Candida species, including C. auris

Medium Performance
1. High Specificity: Differentiation of the most common Candida species with very high specificity:
C. albicans ≈ 100 %*
C. tropicalis ≈ 100 %*
C. krusei ≈ 100 %*

2. Unique medium to differentiate C. auris from other Candida species: Owe to its high specificity, it can be used also as a screening tool in case of outbreaks.
Specificity ≈ 100 %*
Sensitivity ≈ 100 %*
* Specificity and Sensitivity from scientific study: «Evaluation of a novel chromogenic medium for Candida spp. identification and comparison with CHROMagarTM Candida for the detection of Candida auris in surveillance samples» Juan V. Mulet and al., 2020.

3. Easy identification: Identification by MALDI-TOF can be carried directly from a colony. No need of subculture.

Typical Appearance of microorganisms
Candida albicans → green-blue
Candida auris → light blue with blue halo
Candida tropicalis → metallic blue with pink halo
Candida krusei → pink and fuzzy

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07710942107