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https://researchonline.lshtm.ac.uk/id/eprint/7151
Abstract
INTRODUCTION: The World Health Organization field leprosy classification is based on the number of skin lesions: single-lesion leprosy (1 lesion), paucibacillary leprosy (2-5 skin lesions), and multibacillary leprosy (more than 5 skin lesions). Worldwide, about 720,000 new cases of leprosy are reported each year, and about 2 million people have leprosy-related disabilities.
