Volume 8, Number 1—January 2002

Research

A Large Outbreak of Legionnaires’ Disease at a Flower Show, the Netherlands, 1999

Jeroen W. Den Boer*† , Ed P.F. Yzerman‡, Joop Schellekens*, Kamilla D. Lettinga§, Hendriek C. Boshuizen*, Jim E. Van Steenbergen¶, Arnold Bosman*, Susan Van den Hof*, Hans A. Van Vliet*, Marcel F. Peeters#, Ruud J. Van Ketel§, Peter Speelman§, Jacob L. Kool*, and Marina A.E. Conyn Van Spaendonck*

Author affiliations: *National Institute of Public Health and the Environment, Bilthoven, the Netherlands; †Municipal Health Service Zuid-Kennemerland, Haarlem, the Netherlands; ‡Regional Laboratory of Public Health Haarlem, Haarlem, the Netherlands; §Academic Medical Center, Amsterdam, the Netherlands; ¶National Outbreak Structure for Infectious Diseases, Den Haag, the Netherlands; #Regional Laboratory of Public Health Tilburg, Tilburg, the Netherlands

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Figure 2

Figure 2. . Confirmed and probable cases of Legionnaires' disease per day of visit to flower show. Incidence per 10,000 visitors per day of visit, February 16-March 2, 1999.

Main Article

¹A bubblemat is an inflatable rubber mat that causes a whirlpool-like effect when placed in a normal bathtub.

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