What is the difference between a sprain and a strain? explain which areas of the body they affect.

Sprain: is the stretching/tearing of the ligaments.
   ankle, anything dealing with the joints of the bone. 

Strain: stretching/tearing of the muscle or tendon.
   your leg muscle, thigh, arm, wrist and anything dealing with tissues in the body.

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There is tumerous cancer, kawaski disease and more.

Answerrespiratory illness;