Volume 21, Number 7—July 2015
Research
Results from the National Legionella Outbreak Detection Program, the Netherlands, 2002–2012
Jeroen W. Den Boer
, Sjoerd M. Euser, Petra Brandsema, Linda Reijnen, and Jacob P. Bruin
, Sjoerd M. Euser, Petra Brandsema, Linda Reijnen, and Jacob P. Bruin
Table 3
Sampling results (N = 1,484) by potential sources of infection for patients with Legionnaires’ disease, the Netherlands, 2002–2012*
| Source type (no. samples) |
Samples positive for Legionella spp., no. (%) |
Samples negative for Legionella spp., no. (%) |
|||
| Total |
L. pneumophila non-SG1 |
L. pneumophila SG1 |
L. non-pneumophila |
||
| Wellness center (37)† | 27 (73.0) | 4 (10.8) | 15 (40.5) | 8 (21.6) | 10 (27.0) |
| Hospital/health care setting (90) | 46 (51.1) | 5 (5.6) | 23 (25.6) | 18 (20.0) | 44 (48.9) |
| Cooling tower (43) | 19 (44.2) | 8 (18.6) | 9 (20.9) | 2 (4.7) | 24 (55.8) |
| Sports facility (29) | 10 (34.5) | 2 (6.9) | 5 (17.2) | 3 (10.3) | 19 (65.5) |
| Swimming pool (40) | 13 (32.5) | 2 (5.0) | 6 (15.0) | 5 (12.5) | 27 (67.5) |
| Hotel (20) | 8 (40.0) | 3 (15.0) | 3 (15.0) | 2 (10.0) | 12 (60.0) |
| Holiday park (23) | 5 (21.7) | 1(4.3) | 2 (8.7) | 2 (8.7) | 18 (78.3) |
| Residence (762) | 155 (20.3) | 30 (3.9) | 21 (2.8) | 104 (13.6) | 607 (79.7) |
| Workplace (92) | 19 (20.7) | 8 (8.7) | 2 (2.2) | 9 (9.8) | 73 (79.3) |
| Car wash/gasoline station (44) | 6 (13.6) | 1 (2.3) | NA | 5 (11.4) | 38 (86.4) |
| Garden center (86) | 8 (9.3) | 1 (1.2) | 1 (1.2) | 6 (7.0) | 78 (90.7) |
| Campsite (28) | 2 (7.1) | 1 (3.6) | NA | 1 (3.6) | 26 (92.9) |
| Decorative fountain (23) | 1 (4.3) | NA | NA | 1 (4.3) | 22 (95.7) |
| Other (167) | 48 (28.7) | 10 (6.) | 10 (6.0) | 28 (16.8) | 119 (71.3) |
| Total (1,484) | 367 (24.7) | 76 (5.1) | 97 (6.5) | 194 (13.1) | 1,117 (75.2) |
*Study period was August 1, 2002–August 1, 2012. SG1, serogroup 1; NA, not possible to calculate.
†Recreational facility offering spas, saunas, fitness equipment, massages, etc.
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