What age group is most at risk for acute rheumatic fever (ARF) following group A streptococcal (GAS) upper respiratory tract infection?

Answer

Rheumatic fever is most frequently observed in the age group most susceptible to group A streptococcal infections (ie, children aged 5-15 y). The attack rate following upper respiratory tract infection is approximately 3% in individuals with untreated or inadequately treated infection.

ARF is commonly seen in young adults or children aged 4-9 years, while PSGN is more common in persons older than 60 years and in children younger than 15 years.

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Media Gallery

Invasive soft tissue infection due to Streptococcus pyogenes. This child developed fever and soft-tissue swelling on the fifth day of a varicella-zoster infection. Leading edge aspirate of cellulitis grew S pyogenes. Although the patient responded to intravenous penicillin and clindamycin, operative débridement was necessary because of clinical suspicion of early necrotizing fasciitis.
Streptococcus group A infections. Beta hemolysis is demonstrated on blood agar media.
Streptococcus group A infections. M protein.
Streptococcus group A infections. Erysipelas is a group A streptococcal infection of skin and subcutaneous tissue.
Streptococcus group A infections. White strawberry tongue observed in streptococcal pharyngitis. Image courtesy of J. Bashera.
Streptococcus group A infections. Streptococcal rash. Image courtesy of J. Bashera.
Group A Streptococcus on Gram stain of blood isolated from a patient who developed toxic shock syndrome.
Streptococcus group A infections. Necrotizing fasciitis of the left hand in a patient who had severe pain in the affected area.
Streptococcus group A infections. Patient who had had necrotizing fasciitis of the left hand and severe pain in the affected area (from Image 8). This photo was taken at a later date, and the wound is healing. The patient required skin grafting.
Streptococcus group A infections. Gangrenous streptococcal cellulitis in a patient with diabetes.
Erythema secondary to group A streptococcal cellulitis.
Invasive soft tissue infection due to Streptococcus pyogenes. This child developed fever and soft-tissue swelling on the fifth day of a varicella-zoster infection. Leading edge aspirate of cellulitis grew S pyogenes. Although the patient responded to intravenous penicillin and clindamycin, operative débridement was necessary because of clinical suspicion of early necrotizing fasciitis.
Streptococcus group A infections. Necrotizing fasciitis rapidly progresses from erythema to bullae formation and necrosis of skin and subcutaneous tissue.
Throat swab. Video courtesy of Therese Canares, MD; Marleny Franco, MD; and Jonathan Valente, MD (Rhode Island Hospital, Brown University).

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Author

Zartash Zafar Khan, MD, FACP Infectious Disease Consultant

Zartash Zafar Khan, MD, FACP is a member of the following medical societies: American College of Physicians, Infectious Diseases Society of America, International Society for Infectious Diseases

Disclosure: Nothing to disclose.

Coauthor(s)

Michelle R Salvaggio, MD, FACP Assistant Professor, Department of Internal Medicine, Section of Infectious Diseases, University of Oklahoma College of Medicine; Medical Director of Infectious Diseases Institute, Director, Clinical Trials Unit, Director, Ryan White Programs, Department of Medicine, University of Oklahoma Health Sciences Center; Attending Physician, Infectious Diseases Consultation Service, Infectious Diseases Institute, OU Medical Center

Michelle R Salvaggio, MD, FACP is a member of the following medical societies: American College of Physicians, Infectious Diseases Society of America

Disclosure: Received honoraria from Merck for speaking and teaching.

Chief Editor

Pranatharthi Haran Chandrasekar, MBBS, MD Professor, Chief of Infectious Disease, Department of Internal Medicine, Wayne State University School of Medicine

Pranatharthi Haran Chandrasekar, MBBS, MD is a member of the following medical societies: American College of Physicians, American Society for Microbiology, International Immunocompromised Host Society, Infectious Diseases Society of America

Disclosure: Nothing to disclose.

Acknowledgements

John L Brusch, MD, FACP Assistant Professor of Medicine, Harvard Medical School; Consulting Staff, Department of Medicine and Infectious Disease Service, Cambridge Health Alliance

John L Brusch, MD, FACP is a member of the following medical societies: American College of Physicians and Infectious Diseases Society of America