A rare disease, also referred to as an orphan disease, is any disease that affects a small percentage of the population.
Most rare diseases are genetic, and thus are present throughout the person's entire life, even if symptoms do not immediately appear. Many rare diseases appear early in life, and about 30 percent of children with rare diseases will die before reaching their fifth birthday. With a single diagnosed patient only, ribose-5-phosphate isomerase deficiency is presently considered the rarest genetic disease.
No single cutoff number has been agreed upon for which a disease is considered rare. A disease may be considered rare in one part of the world, or in a particular group of people, but still be common in another.
Read more about Rare Disease: Definition, Relationship To Orphan Diseases, Prevalence, Characteristics, Public Research, Public Awareness, Support
Famous quotes containing the words rare and/or disease:
“No matter what our achievements might be, we think well of ourselves only in rare moments. We need people to bear witness against our inner judge, who keeps book on our shortcomings and transgressions. We need people to convince us that we are not as bad as we think we are.”
—Eric Hoffer (1902–1983)
“‘Tis the common disease of all your musicians that they know no mean, to be entreated, either to begin or end.”
—Ben Jonson (c. 1572–1637)