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Thermo Scientific™ Strep Selective II Agar

Catalog No. p-4523641
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Description

Selectively isolate beta-hemolytic Group A Streptococcus from throat cultures and upper respiratory specimens using Strep Selective II Agar.

Selectively isolate β-hemolytic Group A Streptococcus from throat cultures and upper respiratory specimens using Thermo Scientific™ Remel™ Strep Selective II Agar (w/colistin, oxolinic acid). Pacifico at al. demonstrated the isolation of β-hemolyic streptococci is improved with the use of a selective medium which inhibits oropharyngeal commensal microbial flora1. In 1984, Pelts developed a selective medium containing colistin and oxolinic acid2. This medium was valuable for isolation of streptococci from mixed flora, resulting in increased isolation rates and early identification of isolates.

Clinical assessment alone is unreliable in distinguishing streptococcal and non-streptococcol pharyngitis3. Serious medical complications may follow pharyngitis caused by group A streptococci, making bacterial examination of the throat an indispensable diagnostic tool.

Use of Strep Selective II agar is recommended for selectively isolating β-hemolytic Group A Streptococcus from throat cultures and upper respiratory specimens.

  • Ready-to-use: Convenience of prepared media
  • Selective: Antimicrobial agents colistin and oxolinic acid inhibit growth of staphylococci, coryneforms, and gram-negative organisms.

This medium contains Tryptic Soy Agar supplemented with sheep blood as the base medium for luxuriant growth and enhanced hemolytic reactions of streptococci. Casein and soy peptones in TSA provide a nutritious source of nitrogen, amino acids, and peptides necessary for bacterial growth. Sheep blood provides growth factors and allows detection of hemolytic reactions.

Colistin and oxolinic acid provide good growth from a very small inocula and show no effect on streptococci while effectively inhibiting staphylococci, coryneforms, and gram-negative organisms.

Not all products are available for sale in all territories. Please inquire.

Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

TRUSTED_SUSTAINABILITY

Specifications

Description Strep Selective II Agar w/colistin, oxolinic acid
Format 12mm x 85mm Monoplate
Product Type Agar
Quantity 10/Pk.
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