Although endemic elsewhere, Hansen disease (HD) is a chronic infection caused by Mycobacterium leprae and Mycobacterium lepromatosis that is rarely seen in the United States. 1 Few domestic reports offer long-term follow-up of patients with HD, who sometimes develop significant morbidity owing to delayed recognition of their illness. 2 The Los Angeles County HD clinic, in operation since 1963, offers an archive that allows the description of the disease courses of a large group of patients with HD.
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