Outbreak of Food-borne Illness Associated with Plant Material Containing Raphides

  title={Outbreak of Food-borne Illness Associated with Plant Material Containing Raphides},
  author={John T. Watson and Roderick C. Jones and Alicia M. Siston and Pamela S. Diaz and Susan I Gerber and John B. Crowe and R. Duane Satzger},
  journal={Clinical Toxicology},
  pages={17 - 21}
Background. Many botanicals, particularly ornamental houseplants, contain crystals of calcium oxalate called raphides. Raphides have known toxic effects when chewed, including painful edema, vesicle formation, and dysphagia. We report a food-borne illness outbreak associated with ingestion of raphides. Methods. On February 24, 2003, the Chicago Department of Public Health was notified of multiple cases of oral burning and facial edema associated with lunch in an office cafeteria on February 21… 
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