Type A is characterized by mild or moderate fever and migratory polyarthritis. Most of the joints involved are knee, ankle, shoulder, elbow, wrist and other big joints, usually transferred from one joint to another. The focus is red, swollen and burning, and some patients also have several joints at the same time. Atypical patients only have joint pain and no other inflammatory manifestations. Acute inflammation usually subsides in 2 ~ 4 weeks, leaving no sequelae, but it often recurs. If rheumatic activities affect the heart, myocarditis may occur, and even heart valve lesions may be left behind. American healthou joint repair formula can supplement glucosamine, chondroitin sulfate, MSM dimethyl sulfone and shark cartilage.