It is common in the Middle East, the Far East, Eastern Europe and South America, but it is rare in the United Kingdom, Western Europe and North America. The prevalence of the disease was in 1920 10% and now only 0.1%, and the reason for the decline of the prevalence of the disease due to improved hygiene in most societies and because of the use of antibiotics
The disease is usually found in poor and undernourished communities living in overcrowded and unhealthy housing. The pathogenesis of the disease When pharyngitis and tonsillitis occurs through group A of the streptococcal bacteria, the immune system produces antibiotics against the existing M protein On the surface of the external bacteria, and these antibiotics cause the symptoms of the disease as it affects the various organs of the body leading to inflammation and impact, so the disease because of the immunity of self and not because of the effect of direct bacteria on the cells
The disease affects the various organs of the body. When the scientists performed a tissue examination of the heart of a child with rheumatic fever, they found the so-called bodies of Achov inside the cells, a distinctive sign of this disease, and located in the internal heart membrane and heart muscle, and also found the impact of heart valves and the presence of responsibilities, Scientists also found that the membrane surrounding the heart also suffers from severe inflammation in people with rheumatic fever and can eventually be cirrhosis, and when examining the membrane Sinovi located in the joints scientists also noticed inflammation.
The most common symptom of the disease is the patient’s feeling of heat with anorexia, general weakness, palpitations of the heart and joint pain. Sometimes the patient may suffer from so-called dance. The treatment of the disease is concentrated on complete rest, aspirin and cortisone. The prevention of the disease is based on the use of penicillin for five years At least after the disease or for twenty years, and the most important complications of the disease is its effect on the mitral valve, leading to a reflux.