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*
, 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*Table 4
Characteristics of persons with legionellosis who worked in the right half of hall 3 compared with staff members who did not get become ill and who worked in the same hall
| Cases in right half of hall 3 (n=7) n (%) | Cohort respondents in hall 3 (n=151) n (%) | |
|---|---|---|
| Age group | ||
| <30 | 0 (0) | 23 (15.7) |
| 30-39 | 0 (0) | 24 (16.3) |
| 40-49 | 1 (14) | 29 (19.7) |
| 50-59 | 4 (57) | 46 (31.3) |
| 60-69 | 2 (29) | 20 (13.6) |
| >70 | 0 (0) | 5 (3.4) |
| Males | 6 (86) | 67 (45.3) |
| Smokers | 4 (67)a | 44 (29.1) |
| Immunocompromised | 0 (0) | 5 (3.3) |
| History of pneumonia | 1 (14) | 5 (3.3) |
| History of diabetes | 1 (14) | 5 (3.3) |
aData missing for one case.
1A bubblemat is an inflatable rubber mat that causes a whirlpool-like effect when placed in a normal bathtub.
