PRIMARY BRONCHOPULMONARY ASPERGILLOSIS, AN OCCUPATIONAL DISEASE

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Abstract
Pulmonary aspergillosis is not rare, but its consideration as a disease peculiar to certain occupations has been generally overlooked. Aspergilli are regular inhabitants of soil and are often isolated from cereal products, unrnilled grain, hay, and other stock feeds. Of the many spp. of this mold, few are pathogenic and Aspergillus fumigatus is the most common offender in infections of the bronchopulmonary tissue. Man is relatively immune, and classic instances are found in certain occupations which involve prolonged and intimate contact with grain and birds. Thus, farmers, feed mill workers and threshers are prone to infection. Infection in man may be primary, or secondary if engrafted on a pre-existing bronchopulmonary disease. A case report is given. The patient, [male], aged 47, had had intimate and prolonged contact with animals and heavy concs. of dust (mixed with hay, grain, corn and straw used for the animals) at the Union Stock Yards, Chicago. Sputum examination and culture revealed a typical A. fumigatus.

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