Leprosy
Historical texts

Written accounts of leprosy date back thousands of years. Various skin diseases translated as leprosy appear in the ancient Indian text, the Atharava Veda, by 600 BC. Another Indian text, the Manusmriti (200 BC), prohibited contact with those infected with the disease and made marriage to a person infected with leprosy punishable.

The Hebraic root tsara or tsaraath (צָרַע, – tsaw-rah' – to be struck with leprosy, to be leprous) and the Greek (λεπρός–lepros), are of broader classification than the more narrow use of the term related to Hansen's Disease. Any progressive skin disease (a whitening or splotchy bleaching of the skin, raised manifestations of scales, scabs, infections, rashes, etc....), as well as generalized molds and surface discoloration of any clothing, leather, or discoloration on walls or surfaces throughout homes all, came under the "law of leprosy" (Leviticus 14:54–57). Ancient sources such as the Talmud (Sifra 63) make clear that tzaraath refers to various types of lesions or stains associated with ritual impurity and occurring on cloth, leather, or houses, as well as skin. Traditional Judaism and Jewish rabbinical authorities, both historical and modern, emphasize that the tsaraath of Leviticus is a spiritual ailment with no direct relationship to Hansen's disease or physical contagions. The relation of tsaraath to "leprosy" comes from translations of Hebrew Biblical texts into Greek and ensuing misconceptions.

All three Synoptic Gospels of the New Testament describe instances of Jesus healing people with leprosy (Matthew 8:1–4, Mark 1:40–45, and Luke 5:12–16). The Bible's description of leprosy is congruous (if lacking detail) with the symptoms of modern leprosy, but the relationship between this disease, tzaraath, and Hansen's disease has been disputed. The biblical perception that people with leprosy were unclean can be found in a passage from Leviticus 13: 44–46. While this text defines the leper as impure, it did not explicitly make a moral judgement on those with leprosy. Some Early Christians believed that those affected by leprosy were being punished by God for sinful behavior. Moral associations have persisted throughout history. Pope Gregory the Great (540–604) and Isidore of Seville (560–636) considered people with the disease to be heretics.
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