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SUMMARY Endemic pemphigus foliaceus or fogo selvagem (FS) is a blistering autoimmune disease indigenous to certain states of Brazil. In the state of Parana the disease has been reported in the north‐central regions where a total of 632 cases were documented in the period of 1940–80. The present study describes a new focus of FS in the western region of the state of Parana. This focus includes a total of 213 new cases of FS and only 11 cases of pemphigus vulgaris seen in this region from February 1976 to July 1988. Over 90% of these patients were peasants working in agriculture or involved in other outdoor activities.

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