Leprosy
Middle Ages

The social perception of leprosy in the general population was in general mixed. On one hand, people feared getting infected with the disease and thought of people suspected of leprosy to be unclean, untrustworthy, and occasionally morally corrupt. On the other hand, Jesus' interaction with lepers, the writing of church leaders and the Christian focus on charitable works led to viewing the lepers as "chosen by God" or seeing the disease as a means of obtaining access to heaven.

Early medieval understanding of leprosy was influenced by early Christian writers such as Gregory of Nazianzus and John Chrysostom, whose writings were later embracedby Byzantine and Latin writers. Gregory, for example, did not only compose sermons urging Christians to assist victims of the disease, but also condemned pagans or Christians who justified rejecting lepers on the allegation that God had sent them the disease to punish them. As cases of leprosy increased during these years in the Eastern Roman Empire, becoming a major health issue, the ecclesiastic leaders of the time discussed how to assist those affected as well as change the attitude of society towards them. They also tried this by using the name "Holy disease" instead of the commonly used "Elephant's disease" (elephantiasis), implying that God did not create this disease to punish people but to purify them for heaven. Although not always successful in persuading the public and a cure was never found by Greek medicians, they created an environment where victims could get palliative care and were never expressly banned from society, as sometimes happened in Western Europe. Theodore Balsamon, a 12th-century jurist in Constantinople, noted that lepers were allowed to enter the same churches, cities and assemblies that healthy people attended.

As the disease became more prevalent in Western Europe in the fifth century, efforts began to set up permanent institutions to house and feed lepers. These efforts were, inclusively, the work of bishops in France at the end of the sixth century, such as in Chalon-sur-Saône. The increase in hospitals or leprosaria (sing. leprosarium) that treated people with leprosy in the 12th and 13th century seems to indicate a rise in cases, possibly in connection with the increase in urbanisation as well as returning crusaders from the Middle East. France alone had nearly 2,000 leprosaria during this period. Additionally to the new leprosia, further steps were taken by secular and religious leaders to prevent further spread of the disease. The third Lateran Council of 1179 required lepers to have their own priests and churches and a 1346 edict by King Edward expelled lepers from city limits. Segregation from mainstream society became common, and people with leprosy were often required to wear clothing that identified them as such or carry a bell announcing their presence. As in the East, it was the Church who took care of the lepers due to the still persisting moral stigma and who ran the leprosaria. Although the leprosaria in Western Europe removed the sick from society, they were never a place to quarantine them or from which they could not leave: lepers would go beg for alms for the upkeep of the leprosaria or meet with their families.

Multiple groups in western Europe from the middle ages faced social ostracization and discrimination that was justified, in part, due to claims that they were the descendants of lepers. These groups included the Cagots and the Caquins.
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