A NIOSH evaluation of a pulp-and-paper mill blastomycosis outbreak found that 162 of 645 workers met the case definition, with higher prevalence among workers in the paper mill and maintenance areas; NIOSH sampled soil, organic material, surface dust, and HVAC filters and identified dust/mold distribution through ventilation as a control concern.
page 6 · Our Key Findings · 1
There were 162 of 645 workers who met the NIOSH case definition for blastomycosis. ... Workers in the E1 Paper Mill and Maintenance areas had a higher prevalence of blastomycosis ... We collected a variety of environmental samples, including soil, organic material, surface dust, and filter materials from the HVAC systems ... Ventilation systems impact how contaminants like dust, pollen, and mold are distributed and removed from spaces.