(Updated at 3:15 p.m.) The Fairlington 5K Run and Walk tomorrow will raise money for an Arlington girl with a rare, degenerative disease.
In 2011, Ellie McGinn was diagnosed with LBSL (leukoencephalopathy with brainstem and spinal cord involvement and lactate elevation), which causes impaired nervous system functioning that can lead to muscle stiffness, tremors, weakness, poor balance and difficulty coordinating body movements.