There was an error in the July-August 2005 issue of the Journal of Public Health Management and Practice. The following reference was missing in the abstract of page 301, in the article by Klaucke and Vogt entitled "A Case Exercise: Outbreak Investigation at a Vermont Community Hospital": Klaucke DN, Johansen M, Vogt RL. An outbreak of xylene intoxication in a hospital. Am J Ind Med. 1982;3:173-178. The publisher regrets the error.