Is Rheumatic Fever hereditary?

Rheumatic fever is not an inherited genetic condition, but rather an autoimmune response triggered by an untreated infection with Group A Streptococcus bacteria. While it is not hereditary in the sense of being passed down through DNA mutations, there is evidence of familial susceptibility, meaning certain individuals may be genetically predisposed to an exaggerated immune response following a strep infection.

Is Rheumatic Fever a genetic or hereditary disease?

Rheumatic fever is not a genetic disease caused by a mutation in a single gene. Because it is an inflammatory reaction to a bacterial infection, it does not follow Mendelian inheritance patterns like autosomal dominant or recessive conditions. However, research suggests that Rheumatic fever has a multifactorial component; genetic factors may influence how an individual's immune system recognizes and reacts to streptococcal antigens, potentially increasing the risk for certain families.

Are there genetic tests for Rheumatic Fever?

There is currently no clinical genetic test available to diagnose Rheumatic fever or to predict who will develop it. Diagnosis is based on the Jones Criteria, which evaluates clinical signs such as carditis, arthritis, and chorea in the context of recent streptococcal infection. Genetic counseling is generally not required for Rheumatic fever, as it is not a hereditary disorder caused by spontaneous or inherited gene mutations.

What factors increase the risk of developing Rheumatic Fever?

While the disease is not passed through DNA, the risk of developing Rheumatic fever is significantly higher in certain populations due to environmental and immunological factors. Key risk factors include:

• History of untreated or inadequately treated Group A streptococcal pharyngitis (strep throat).


• Crowded living conditions that facilitate the spread of streptococcal bacteria.


• Previous history of Rheumatic fever, which drastically increases the risk of recurrence upon subsequent strep infections.


• Age, with the highest incidence occurring in children between 5 and 15 years old.

Next steps

• Consult a pediatrician or infectious disease specialist if you suspect a streptococcal infection.


• Ensure that any diagnosed strep throat is treated with the full course of prescribed antibiotics.


• Connect with the 11 members of our DiseaseMaps.org community who have experience living with Rheumatic fever.


• Discuss secondary prevention strategies (long-term antibiotic prophylaxis) with your doctor if you have a history of Rheumatic fever.

Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.

References

• NIH Genetic and Rare Diseases Information Center (GARD) - Rheumatic Fever


• World Health Organization (WHO) - Rheumatic Fever and Rheumatic Heart Disease Fact Sheets


• American Heart Association (AHA) - Prevention of Rheumatic Fever


• Centers for Disease Control and Prevention (CDC) - Group A Streptococcal (GAS) Disease