Leprosy, or Hansen’s disease, is caused by bacteria attacking nerves in extremities like hands, feet, and face, resulting in numbness. It’s transmitted through airborne moisture droplets from untreated individuals but isn’t hereditary. While mildly infectious, it’s not contracted through touch, requiring prolonged exposure to an untreated patient. Complications arise if untreated, leading to nerve damage, injuries, ulcers, infections, and potential permanent disability. Early treatment reduces the risk of disability.

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