How often does strep come as rheumatic fever?

Causes ARF. Strep throat leads to acute rheumatic fever because the body mistakes chemicals in the strep as if they were components of some of our normal tissues, and then reacts against those tissues thinking they are foreign invaders. This will happen with some frequency unless the strep throat is treated appropriately, but this has become increasingly rare in usa since most cases are treated appropriately.

Related Questions

If someone has had Rheumatic Fever in the past and they get Strep again, do they have a recurrence if they treat Strep within a week or so?

Strep. You could develop recurrent rheumatic fever from a strep infection, but prompt treatment is the best way to avoid it. If you have rheumatic heart disease or history of glomerulonephritis, taking permanent penicillin prophylaxis would be recommended although it's not as effective for prevention of glomerulonephritis. A specialist in infectious diseases could answer your question best,however. Read more...

My 4 year old's strep was not treated for almost 2 weeks, what is her risk of rheumatic fever?

Jones criteria . Rheumatic fever is a sequelae, or side effect of strep infections that occurs within 3 weeks of a Group A Strep infection( confirmed) and 2 major criteria or 1 major/ 1 minor criteria(Jones). Major : carditis, Polyarthrits, Chorea, E marginatum rash, nodules under skin. Minor : Arthralgia, Fever, Increased ESR/CRP, Arrhymia. Risk - minimal very rare side effect of strep . Read more...
About 1/200. We don't see it as much now as we did many years ago due to increased recognition and treatment of strep. However, the risk of complications like Rheumatic fever is still present, primarily in children. The cited risk per untreated strep infection is 1/200 and can be reduced/eliminated if treatment is initiated within 10 days of first symptoms. Read more...

My 8 year old had strep at lwast 10 times last year. He had a recent strep test that was negative but he has had a fever for over a week now could he have rheumatic fever?

Not necessarily . It's true that rheumaeva fever patients have fever. They also have other manifestations such as rash, joint swelling, cardiac involvement etc. But be certain that that is the true cause of his fever because it could be something else. Your physician will be the best judge of what's going on. He needs to be seen. Read more...
Rheumatic fever. Rheumatic fever usually follows a strep throat about 2 weeks after the diagnosis. Since the strep test was negative, his illness looks more viral in nature. If the fever persists and your son is feeling tired, achy and has swollen glands loss of appetite, bring him back to the doctor for blood work to rule out mononucleosis. Read more...

If mild rheumatic fever is untreated & runs its course without serious complications, is an untreated strep infection likely to cause a relapse?

Possible. Doesn't really matter if rf was initially 'mild', although i'm not sure what that means. Recurrence after another strep infection is always possible, but not definite. Yet the drawbacks of having repeated rf episodes are not good, particularly for the heart. Antibiotics are likely recommended chronically. Read more...

Does strep throat cause a rheumatic fever?

Yes it can. Strep throat is due to infection with streptococcus pyogenes. It is easily treated with antibiotics, but if let untreated it can induce an immune reaction that can lead to Rheumatic Fever and Gloerulonephritis. It is easily diagnosed with a swab in minutes and treated with antibiotics so these diseases are rare now. Read more...
It can. Rheumatic fever is a quirk in the immune system. Risk is often cited as occurring in 1/200 untreated strep A infections. The immune system creates antibodies to the germ that also attack human tissues, primarily in the heart, brain or kidneys. It is uncommon in the US where access to medical care is relatively easy. It is a common cause of heart disease and death in the third world. Read more...