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Wisconsin Department of Health Services

Communicable  Diseases Subjects A-Z



Sexually Transmitted Diseases


Disease Reporting

Group A streptococcal infections

(Streptococcus pyogenes)

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Group A Streptococcus (GAS) or Streptococcus pyogenes is a bacterium commonly found in the throat and on the skin. Many people can carry this bacterium without any symptoms of disease. The majority of group A streptococcal diseases are relatively mild illnesses, such as streptococcal pharyngitis ("strep throat") or impetigo. However, occasionally, these bacteria can cause potentially life threatening "invasive" infections. Invasive infection occurs when group A Streptococci invade parts of the body where bacteria are not normally present, including the blood and soft tissues like muscle or fat.

Invasive bacteria home

General information

Group A streptococcal infections (GAS) CDC   
Impetigo fact sheet - Hmong - Spanish
Streptococcal pharyngitis (Strep throat) fact sheet - Hmong - Spanish
Toxic shock syndrome (TSS) fact sheet  - Hmong - Spanish

Information for health professionals

This is a Wisconsin disease surveillance category II disease: 
Report to the patient's local public health department electronically, through the Wisconsin Electronic Disease Surveillance System (WEDSS), by mail or fax using an Acute and Communicable Disease case report F-44151 or by other means within 72 hours upon recognition of a case.
Information on communicable disease reporting

Wisconsin case reporting and public health follow-up guidance: Group A Streptococcal infections EpiNet

Additional resources

Centers for Disease Control and Prevention website (CDC)  
CDC Active Bacterial Core surveillance (ABCs) Program    


Wisconsin Local Health Departments - Regional offices - Tribal agencies

Last Revised: March 04, 2014