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At what age do Duchenne muscular dystrophy symptoms usually begin?
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muscle disease
The causative agent of tetanus, Clostridium tetani.
Symptoms of Duchenne muscular dystrophy typically begin early in life, usually between the ages of two and six. Early signs often include a waddling gait, frequent falling, and difficulty rising from a sitting or lying position. By approximately age four, children often begin to experience noticeable difficulty in walking.12