Acute hypersensitivity pneumonitis in woodworkers caused by inhalation of birch dust contaminated with <i>Pantoea agglomerans</i> and <i>Microbacterium barkeri</i>

Abstract

The results demonstrate that apart from fungi and filamentous actinobacteria, regarded until recently as causative agents of HP in woodworkers, Gram-negative bacteria and non-filamentous actinobacteria may also elicit disease symptoms in the workers processing wood infected with large amounts of these microorganisms. The results obtained also seem to indicate that cellular-mediated reactions are more significant for causing disease symptoms compared to those that are precipitin-mediated.