What practice of group contact did medieval communities utilize when encountering those afflicted with leprosy?

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Medieval communities utilized segregation when encountering those afflicted with leprosy. Leprosy was highly stigmatized and those with the disease were often forced to live in separate, isolated communities known as leper colonies. They were prohibited from having contact with the rest of society, and even had to wear distinctive clothing or carry bells to warn others of their approach.

What Practice of Group Contact Did Medieval Communities Utilize When