Related Experiment Video
Updated: Jun 14, 2026

Direct Microbial Identification using An Automated Microbial Identification System to Facilitate the EUCAST RAST Method Without Mass Spectrometry
Published on: May 24, 2024
[Evaluation of rapid methods for detecting Streptococcus pyogenes. Systematic review and meta-analysis]
J Ruiz-Aragón1, R Rodríguez López, J M Molina Linde
1Agencia de Evaluación de Tecnología Sanitaria de Andalucía (AETSA), Sevilla, España. jesusm.ruiz.ext@juntadeandalucia.es
Rapid antigen tests for streptococcal pharyngitis show good diagnostic performance, with high sensitivity and specificity. However, these rapid tests should be confirmed with microbiological cultures to avoid false results.
Area of Science:
- Microbiology
- Infectious Diseases
- Diagnostics
Background:
- Streptococcal pharyngitis is a common reason for primary and pediatric consultations.
- Inadequate treatment can lead to adverse effects and antibiotic resistance.
- Rapid antigen tests offer quick diagnosis of Streptococcus pyogenes infections.
Purpose of the Study:
- To assess the diagnostic accuracy of rapid antigen-detection tests for Streptococcus pyogenes in throat samples.
Main Methods:
- Systematic review and meta-analysis of studies published between 2000 and 2009.
- Searched databases including MedLine, Embase, and Cochrane Library.
- Evaluated study quality using Quadas's criteria and performed meta-analysis.
Main Results:
- Included 24 studies of moderate quality.
- Overall sensitivity was 0.85 (95% CI, 0.84-0.87) and specificity was 0.96 (95% CI, 0.96-0.97).
- Likelihood ratios indicated good diagnostic performance.
Conclusions:
- Rapid antigen-detection tests demonstrate good accuracy for diagnosing streptococcal pharyngitis.
- Results should be complemented with microbiological culture due to potential false positives and negatives.
Related Concept Videos
Streptococcal Pharyngitis
Rapid Identification of Pathogens
Acute Pyelonephritis II: Diagnostic Studies and Management