Kids Channel
Topics
Medications
Quicklinks
Related Channels

What Is Strep Throat Caused By?

Strep throat is a type of contagious throat infection caused by group A streptococcus bacteria (also called GAS or Streptococcus pyogenes). These are gram-positive bacteria often found in the throat and on the skin of healthy people. People may carry these bacteria and have no symptoms of illness. Or, if the bacteria do cause an infection, it often results in relatively mild illnesses such as strep throat, impetigo, scarlet fever, or cellulites, to name a few.
 
In some cases, group A streptococcus can cause severe and even life-threatening illnesses. This happens when bacteria get into parts of the body where bacteria are not usually found. This can include places such as the blood (bacteremia), lungs (pneumonia), or the fat layer under the skin (necrotizing fasciitis). These infections are sometimes called invasive GAS infections. However, it is rare for people with strep throat to develop invasive GAS infections.
 
(For more information on what causes strep throat, click Strep Throat Causes. This article further describes the bacteria that cause strep throat and lists other medical conditions these bacteria may cause.)
 
6 Quick Tips for Getting Kids to Take Medicine
Referring Pages:
Terms of Use
Advertise with Us
Contact Us
About eMedTV
Privacy Policy
Copyright © 2006-2017 Clinaero, Inc.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind. Site users seeking medical advice about their specific situation should consult with their own physician. Click Terms of Use for more information.