Leprosy in Vietnamese refugees: a case report.

A 41-year-old Vietnamese refugee was found to have tuberculoid leprosy. Dapsone treatment cleared her skin lesion, but did not remove the paraesthesia in the right ulnar nerve. Immunological investigations revealed a strongly positive lepromin test and a significant change in the ratio of T-y and T-mu lymphocytes in peripheral blood. The incidence of leprosy in Vietnamese refugees in Scandinavia is discussed.