There may be as many as 7,000 rare diseases.Р’В The total number of Americans living with a rare disease is estimated at between 25-30 million. In the European Union, a disease is defined as rare when it affects fewer than 1 in 2,000 people. Other countries have their own official definitions of a rare disease. The rare disease definition was needed to establish which conditions would qualify for the new incentive programs. The Orphan Drug Act created financial incentives to encourage companies to develop new drugs for rare diseases. Rare diseases became known as orphan diseases because drug companies were not interested in adopting them to develop treatments. This definition was created by Congress in the Orphan Drug Act of 1983. In the United States, a rare disease is defined as a condition that affects fewer than 200,000 people in the US. Preguntas MР“РЋs Frecuentes Sobre los Trastornos CromosР“С–micos.Consejos Para Obtener Ayuda Financiera Para Una Enfermedad.Consejos Para una CondiciР“С–n no Diagnosticada.Como Encontrar un Especialista en su Enfermedad.Preguntas MР“РЋs Frecuentes Sobre Enfermedades Raras.GuР“Вas de InformaciР“С–n expand submenu for GuР“Вas de InformaciР“С–n.En EspaР“В±ol expand submenu for En EspaР“В±ol.About GARD expand submenu for About GARD.Teachers and Students expand submenu for Teachers and Students.Researchers expand submenu for Researchers.Caring for Your Patient with a Rare Disease.Healthcare Professionals expand submenu for Healthcare Professionals.Patients, Families and Friends expand submenu for Patients, Families and Friends.Find Diseases By Category expand submenu for Find Diseases By Category.

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