A total of 113 leprosy patients were observed at Ryukyu University Hospital during the past 10 years (1982-1991). The number of each type of leprosy were as follows: indeterminate leprosy (1), 9 (8.0%); tuberculoid leprosy (TT), 47 (41.6%); borderline tuberculoid leprosy (BT), 27 (23.9%); mid-borderline leprosy (BB), 11 (9.7%); borderline lepromatous leprosy (BL), 5 (4.4%); lepromatous leprosy (LL), 11 (9.7%); purely neural type, 2 and a primary lesion, 1. The number of newly-detected patients has gradually decreased. The percentage of TT, LL and cases in children has also decreased, while the number of borderline cases, especially BT and elderly cases have increased. The number of patients with disabilities, hand deformities and hair loss etc., was very small and the symptoms were generally mild. From these data, it was considered that the leprosy status in Okinawa Prefecture, where Ryukyu University Hospital is located has gradually shown epidemiological improvement over the past 10 years. However, small number of new patients with leprosy may still be seen because some child cases and indeterminate type cases still exist and relatively large number of middle aged cases was also detected. Recently, the number of foreigners with leprosy who came from endemic areas for this disease have also increased. Therefore, such cases may be seen in Okinawa in the near future.
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