Hypersensitivity Pneumonitis caused by bacteria within healthy sapwood rather than the wood itself

This is a new cause for hypersensitivity pneumonitis in furniture manufacturers starting after switching from Scots Pine to Birch wood. Unusually the cause was the microbes present in high concentration in healthy sap wood rather than from the wood itself, demonstrated with specific inhalation challenges.

References

	Mackiewicz B, Dutkiewicz J, Siwiec J, Kucharczyk T, Siek E, Wójcik-Fatla A, Cholewa G, Cholewa A, Pasciak M, Pawlik K, Szponar B, Milanowski J, Acute hypersensitivity pneumonitis in woodworkers caused by inhalation of birch dust contaminated with Pantoea agglomerans and Microbacterium barkeri, Annals of Agricultural and Environmental Medicine, 2019;26:644-655,https://doi.org/10.26444/aaem/114931

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