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- Group A streptococcal infections facts
- What is group A Streptococcus (GAS)?
- How are group A streptococcal (GAS) infections contracted?
- What diseases are caused by group A streptococcal infection?
- Are group A strep infections contagious?
- What is the contagious period for group A strep infections?
- What is the incubation period for group A strep infections?
- What are the symptoms and signs of GAS infections?
- What is invasive group A streptococcal disease? Who is most at risk for getting invasive GAS disease?
- What are the symptoms and signs of necrotizing fasciitis?
- What are the signs and symptoms of toxic shock syndrome (TSS)?
- How are group A streptococcal (GAS) infections diagnosed?
- What is the treatment for invasive group A streptococcal disease?
- What specialists treat group A streptococcal infections?
- What complications are seen with group A streptococcal infections?
- Is it possible to prevent group A streptococcal infections?
- What is the prognosis for group A streptococcal infections?
- Where can people find more information about group A streptococcal infections?
What specialists treat group A streptococcal infections?
The specialists that treat group A streptococcal infections are infectious-disease specialists. However, depending on the severity and the type of infection, other specialists may be involved. For example, if hospitalization is needed, a critical-care specialist may join the team; if the person is pregnant, an OB/GYN specialist and/or a pediatric specialist may be needed. If surgical debridement is needed (necrotizing fasciitis), a surgical specialist would be consulted. Other types of medical specialists that may care for patients with GAS infections include emergency-medicine specialists, dermatologists, internal-medicine specialists, family-medicine specialists, nephrologists, and ear, nose, and throat specialists.
What complications are seen with group A streptococcal infections?
Many of the complications of GAS infections are considered to be diseases themselves. For example, scarlet fever, rheumatic fever, necrotizing fasciitis, toxic shock syndrome, and many others can complicate or be triggered by GAS infection. Other complications can include the necessity to remove tonsils, renal damage, abscess formation, seizures, and other organ damage; some researchers suggest that severe GAS infections in children may lead to permanent or long-lasting brain changes. Although GAS infections in pregnant females during pregnancy and delivery are infrequent, they require immediate treatment to avoid complications such as endometritis, sepsis, necrotizing fasciitis, or toxic shock syndrome.
Is it possible to prevent group A streptococcal infections?
Many GAS infections can be prevented by reducing the spread of organisms from one person to another. Washing hands frequently is one of the major ways to reduce bacterial transmission. In addition, not sharing the same food and drink containers with others may also be effective. For those people with a GAS infection, covering the mouth and nose when sneezing or coughing can reduce the chance of transmitting the bacteria to others. Washing material that comes in contact with GAS-infected people is also another way to reduce exposure to GAS organisms.
Early treatment of deep infections (for example, excision, drainage, and antibiotic treatment of rectal abscesses) helps prevent invasive GAS disease. In addition, appropriate and timely removal of tampons and surgical packing may reduce the incidence of toxic shock syndrome.
Currently, there is no vaccine commercially available for GAS, but researchers are working on developing vaccines. At least four different major approaches are being researched. There has been some success with a related experimental vaccine against GAS bacterial antigens coupled to cholera toxin subunits. However, the GAS vaccine, prepared by recombinant technology by Vaxent, a vaccine company, may be going into human clinical trials. The new experimental vaccines may become available in the future to prevent GAS infections.