Nephrology and Infectious Diseases

Rare infectious diseases

Rare diseases caused by causative agents rather than genetic or environmental factors. A rare disease is any disease that affects a small percentage of the population. In some parts of the world, an orphan disease is a rare disease whose rarity means there's a lack of a market large enough to gain support and resources for discovering treatments for it, except by the government granting economically advantageous conditions to creating and selling such treatments. Orphan drugs are ones so created or sold.