Clinical Bronchiolitis Obliterans in Workers at a Microwave-Popcorn Plant

In May 2000, eight persons who had formerly worked at a microwave-popcorn production plant were reported to have severe bronchiolitis obliterans. No recognized cause was identified in the plant. Therefore, we medically evaluated current employees and assessed their occupational exposures.Questionnaire responses and spirometric findings in participating workers were compared with data from the third National Health and Nutrition Examination...