Genzyme (Sanofi) is an international business of care, specializing in rare diseases, oncology, multiple sclerosis, and immunology. The company works on debilitating and complex conditions, that can be challenging to diagnose. Sanofi Genzyme is providing new therapies and giving hope to clients and their families around the world. Genzyme is specialized in medicine relating to lysosomal storage diseases, renal disease, orthopedics, transplant and immune diseases, oncology, genetics, and diagnostics.