CDC Streptococcus Laboratory
CDC’s Streptococcus Laboratory provides support for active population-based surveillance for invasive streptococcal disease, primarily caused by groups A and B streptococci and Streptococcus pneumoniae. It supports state and local health departments in the United States to characterize streptococcal isolates and is active in many international collaborations. The laboratory is a reference center for the identification and characterization of streptococci and other Gram-positive catalase-negative cocci.
Streptococcus pyogenes (group A streptococci)
Streptococcus pneumoniae
Streptococcus agalactiae (group B streptococci)
Other Streptococci
Streptococcal Testing Requests
Training and Research
Blast Form
Group A streptococci: Submit emm gene sequence to determine emm subtype of your strain.
Identification of Other Streptococcus Species
There are many species and subspecies within the Streptococcus genus. CDC provides protocols for how to identify and differentiate species of streptococci.
Related Pages
- CDC Streptococcus Laboratory GAS Bioinformatic Pipelines for S. agalactiae, S. pyogenes, and S. pneumoniae
- Emerging Infections Program/Active Bacterial Core surveillance (ABCs)
- Rockefeller University’s Laboratory of Bacterial Pathogenesis and Immunology
- Nizet Lab
- Multilocus Sequence Typing Databases
- Pneumococcal Molecular Epidemiology Network
- Report: Antibiotic Resistance Threats in the United States, 2019
- Global Pneumococcal Sequencing (GPS) Project
- Group A Streptococcal Disease
- Group B Streptococcal Disease
- Pneumococcal Disease
- Laboratory Methods for the Diagnosis of Meningitis: WHO Manual