History of leprosy in India: An overview of historic and modern contributions.

Traditionally, India holds the unenviable position of the origin of leprosy. The disease is thought to have spread, via trade and war, to China, Egypt, and the Middle East, and later to Europe and the Americas. From antiquity to modernity, Indian society treated leprosy singularly for custom and law, a response shaped by both scientific knowledge and cultural attitudes. Over the past centuries, tireless research by eminent physicians and scientists working in India have helped establish a better understanding of clinical, bacteriologic, pathologic, and immunologic aspects of leprosy. Therapeutic modalities that were initially restricted to chaulmoogra expanded to include newer anti-leprotic medications and even surgical reconstruction of deformities. India's future challenges in leprosy control include stigmata, educational knowledge gaps, and multiple systems of medicine. This contribution is an attempt to comprehensively discuss the historic aspect of this exclusive disease focusing on the varied scientific contributions from India.