Strep pyogenes aka group A strep - the organism that causes strep throat.

The scientific name for rheumatic fever is acute rheumatic fever.

Some symptoms of rheumatic fever are having a fever along with painful and tender joints. You may also experience red hot swollen joints, chest pains, fatigue, shortness of breath, and outburst of unusual behaviors such as crying or inappropriate laughing.

Symptoms may include fatigue and fever, stomach pain, and vomiting. In about 75% of all cases of RF one of the first symptoms is arthritis.

You cant prevent rheumatic fever,because you get Rheumatic Fever by frequent Strep Throat Infections.So the best way to prevent Rheumatic Fever would be preventing Strep Throat Infections. :) hope that helps! :)))) this website heps lots! : http://www.mayoclinic.org/rheumatic-fever/treatment.html