Thermo Scientific™ Wellcogen™ Bacterial Antigen Rapid Latex Agglutination Test, Bacterial Meningitis

The Thermo Scientific™ Wellcogen™ Bacterial Antigen Rapid Latex Agglutination Test is a rapid, qualitative diagnostic assay designed for the detection of bacterial antigens associated with meningitis directly from clinical specimens. Utilizing latex agglutination technology, the kit enables fast and reliable identification of key bacterial pathogens responsible for acute bacterial meningitis.

This test provides simultaneous detection and presumptive identification of major meningitis-causing organisms, supporting timely clinical decision-making. It is widely used in clinical microbiology laboratories as a rapid screening tool alongside conventional culture and molecular methods.

Key Features

• Rapid Detection of Multiple Pathogens
  Enables simultaneous detection of several clinically significant bacterial antigens in a single workflow.
• Latex Agglutination Technology
  Provides visible, easy-to-interpret results within minutes.
• Broad Pathogen Coverage
  Detects major meningitis-causing organisms including:
  • Streptococcus Group B
  • Haemophilus influenzae type b
  • Streptococcus pneumoniae
  • Neisseria meningitidis (Groups A, B, C, Y, W135)
  • Escherichia coli K1
• Versatile Sample Compatibility
  Suitable for testing multiple specimen types, including CSF and other body fluids.
• Supports Early Clinical Decision-Making
  Rapid results aid in the early management of suspected meningitis cases.
• CE Marked for Diagnostic Use
  Complies with relevant regulatory standards for laboratory diagnostics.

Applications

Clinical Diagnostics

• Rapid screening for bacterial meningitis
• Detection of bacterial antigens in cerebrospinal fluid (CSF)
• Support for diagnosis of central nervous system infections

Microbiology Laboratories

• Identification of bacterial pathogens from clinical samples
• Testing of blood culture supernatants
• Screening of bacterial isolates

Public Health & Infection Control

• Outbreak investigation and surveillance
• Early detection of meningitis-causing organisms

Test Principle

The assay is based on latex agglutination, where latex particles coated with specific antibodies react with corresponding bacterial antigens present in the sample:

1. Sample is mixed with latex reagent
2. If target antigen is present, visible agglutination occurs
3. Results are interpreted visually within minutes

Supported Sample Types

• Cerebrospinal fluid (CSF)
• Serum
• Urine
• Blood culture supernatants
• Bacterial plate cultures (specific organisms)

Technical Specifications

Kit Contents

• Latex reagents for target pathogens
• Positive and negative controls
• Reaction cards/slides
• Mixing sticks/applicators
• Instruction manual

Ordering Information

Clinical Significance

Bacterial meningitis is a life-threatening condition requiring rapid diagnosis and immediate treatment. The most common causative agents include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae type b. Early detection of bacterial antigens in CSF or other body fluids can significantly improve patient outcomes by enabling prompt antimicrobial therapy.

While culture remains the gold standard, latex agglutination provides rapid preliminary results, especially in cases where prior antibiotic treatment may reduce culture sensitivity.

Unique Advantages

• Rapid Turnaround Time
  Results available within minutes, enabling urgent clinical decisions.
• Multiplex Detection Capability
  Detects multiple pathogens in a single testing workflow.
• Simple and Easy to Use
  No complex instrumentation required.
• Effective Screening Tool
  Particularly useful when culture results are delayed or compromised.
• Broad Sample Compatibility
  Enhances flexibility in clinical laboratory settings.

The Thermo Scientific™ Wellcogen™ Bacterial Antigen Rapid Latex Agglutination Test is a reliable and efficient solution for the rapid detection of key bacterial pathogens responsible for meningitis. Its speed, simplicity, and broad pathogen coverage make it an essential tool for clinical laboratories, supporting timely diagnosis and improved patient management.