[The occupational spectrum in alveolitis and pulmonary fibrosis].

The professional spectrum was analysed in 898 patients with ascertained alveolitides and lung fibroses. Most frequent were fibroses in occupations from agriculture and forestry (167 = 18.6%). Then followed workers in metal (119 = 13.3%), commerce and supply (69 = 7.7%), transport (46 = 5.1%), economic management (46 = 5.1%), building trade (42 = 4.7%) and textile workers (34 = 3.8%). The proportion of the other professional branches was lower than 3.5%. Close connections between disease and profession were seen in the employees in agriculture. The group is formed above all by farmer's lungs (exposure against hay, straw, pellets, corn, fruit, vegetables and so on) and bird-fanciers' lungs. In the other professional groups the rate of the etiologically clarified cases is essentially smaller. Particularly the metal branches are a centre for further investigations.