SayPro Rheumatic Fever – A Disease, Usually Occurring In Childhood, That May Follow A Streptococcal Infection. Symptoms May Include Fever, Sore Or Swollen Joints, Skin Rash, Involuntary Muscle Twitching, And Development Of Nodules Under The Skin. If The Infection Involves The Heart, Scars May Form On Heart Valves, And The Heart’s Outer Lining May Be Damaged.