Nancy Soule of Liberty recently celebrated her 100th infusion of Tysabri, which helps her lessen the effects of her multiple sclerosis. It was also a big day for a young woman about half Soule’s age. After Nancy’s celebration broke up, the young woman entered the infusion therapy center for her first dose of Tysabri. With all the warnings she’d been given about the drug, the woman was clearly nervous. Talking with Nancy about her positive experience (no relapses or new lesions on her brain), clearly made the woman feel better.