Streptococcus Laboratory

A laboratory worker cultures streptococci.
About CDC's Streptococcus Laboratory
CDC has a laboratory mainly focused on Streptococcus pneumoniae and groups A and B streptococci.
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Training and Research Opportunities
Summary of laboratory opportunities to work with pathogenic streptococci and pneumococci.
Documentation and Downloadable Files
Resources and protocols available for download from CDC's  Streptococcus ​Laboratory.
Request Streptococcal Testing
Criteria for submitting clinical specimens or isolates to CDC's Streptococcus Laboratory.

Pathogen-specific information

A computer-generated image of Streptococcus pyogenes, which are also called group A strep bacteria.
Streptococcus pyogenes Activities
Commonly called group A Streptococcus (GAS), this pathogen is a global public health concern.
A computer-generated image of Streptococcus agalactiae, which are also called group B strep bacteria.
Streptococcus agalactiae Activities
This pathogen causes group B Streptococcus (GBS) disease and are classified into 10 serotypes.
A computer-generated image of Streptococcus pneumoniae, which are also called pneumococcus.
Streptococcus pneumoniae Activities
Pneumococci are a leading cause of death from pneumonia.
This digitally colorized scanning electron microscopic image depicted large numbers of Gram-positive, Enterococcus sp. bacteria.
Other Streptococcus Species and Related Genera Activities
CDC studies other streptococci and catalase-negative, Gram-positive cocci too.