Ritka és Veleszületett Rendellenességgel élők Országos Szövetsége (RIROSZ) is a brand that is dedicated to supporting individuals living with rare and congenital disorders in Hungary. They operate the most comprehensive source of information in Hungarian about rare diseases, offering a wide range of services and resources. Their website serves as a central hub for information, providing valuable resources for patients, healthcare professionals, and volunteers.

With a focus on timely and accurate information, RIROSZ aims to ensure that individuals living with rare diseases and their families have access to the appropriate healthcare, social support, and educational services they need. RIROSZ offers an Information Center and helpline to provide guidance and assistance. They also have various projects and initiatives, including awareness campaigns and a COVID-19 information network for individuals affected by rare diseases.

With their mission to improve the lives of those affected by rare diseases, RIROSZ plays a crucial role in advocating for their needs and fostering a sense of community among individuals living with these conditions