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Occupational asthma caused by dry metabisulphite.
  1. J L Malo,
  2. A Cartier,
  3. A Desjardins
  1. Department of Chest Medicine, Hôpital du Sacré-Coeur, Montreal, Canada.


    A case is described of occupational asthma in a worker with no previous history of asthma who sprinkled dried metabisulphite powder onto potatoes and developed work-related symptoms. Occupational asthma was confirmed by specific inhalation challenges.

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