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[Farmer's lung disease in the Aveyron department (a retrospective study of 82 cases)].

The authors present a retrospective study of 82 cases of farmer's lung disease in the Aveyron department. Observations were selected on precise diagnostic criteria classified on acute (8 cases), progressive (69 cases) and chronic alveolitis (5 cases). They observe an almost exclusive repartition in the bovine breeding areas, which are regions of large hay culture and of high humidity. They show the annual repartition of cases is strongly linked to the pluviometry of the previous hay-making. They underline the fact that the modernising of agricultural work reduces some factors favourable to the disease but can promote new ones.