Hardy Diagnostics
Description
Test Type: Rapid Latex Agglutination Test.
Technology: Utilizes a modified acid extraction procedure (room temperature nitrous acid extraction) to liberate group-specific antigens from the bacterial cell wall.
Result Speed: Provides results quickly—typically one to two minutes for a complete procedure.
Simplicity: All color-coded reagents are ready-to-use, and the procedure is simple, requiring no incubation steps.
Readability: Uses blue latex particles on a white reaction card, which creates a high-contrast, easy-to-read result (agglutination or clumping indicates a positive reaction).
Sensitivity: Greater than 98% sensitive, often requiring as little as one colony for testing.
Format: Supplied as a complete kit for 60 tests, including all latex suspensions (Groups A, B, C, D, F, G), extraction reagents, reaction cards, and mixing sticks.
The primary use is for the serological identification (Lancefield grouping) of streptococci in a clinical or research microbiology setting.
Target Organisms: Used for the rapid identification of Streptococcus isolated colonies belonging to Lancefield's Groups:
Group A (S. pyogenes)
Group B (S. agalactiae)
Group C
Group D (Enterococcus faecalis and non-enterococcal Group D)
Group F
Group G
Clinical Diagnostics: This kit is critical in clinical laboratories for quickly determining the group of beta-hemolytic Streptococcus isolates from patient cultures (e.g., throat swabs, blood cultures). A rapid grouping helps guide diagnosis and treatment, particularly for serious pathogens like Group A Strep (S. pyogenes).