TABLE 1.
Clinical and environmental L. pneumophila serogroup 6 isolates from the hospital under survey, by time of isolation and origin
| Strain no. | Date (mo/yr) | Source of isolate | Location (block/ward) | Heating tank pressurea | Legionella count (cfu/liter) |
|---|---|---|---|---|---|
| 1 | April/1989 | Patient 1 | C/cardiology, medicine | ||
| 2 | April/1989 | Sink tap water | C/cardiology | MP | 3 × 103 |
| 3 | April/1989 | Sink tap water | C/medicine | MP | NDb |
| 4 | April/1989 | Bath tub water | C/cardiology | MP | 1 × 103 |
| 5 | July/1995 | Shower water | C/pediatric hematology | HP | ND |
| 6 | August/1995 | Shower water | C/pediatric hematology | HP | 8 × 102 |
| 7 | July/1995 | Patient 2 | C/pediatric hematology, room 5 | ||
| 8 | July/1995 | Patient 2 | C/pediatric hematology | ||
| 9 | July/1995 | Patient 2 | C/pediatric hematology | ||
| 10 | January/1996 | Sink tap water | C/pediatric hematology, room 5 | HP | 1 × 102 |
| 11 | January/1996 | Sink tap water | C/pediatric hematology, room 1 | HP | 5 × 102 |
| 12 | January/1996 | Sink tap water | C/pneumology | MP | 2 × 102 |
| 13 | January/1996 | Sink tap water | B/hematology | HP | 1 × 103 |
| 14 | January/1996 | Heating tank | B | MP | >1 × 104 |
| 15 | January/1996 | Heating tank | B | LP | 7 × 102 |
| 16 | January/1996 | Heating tank | A | HP | 4 × 103 |
| 17 | January/1996 | Heating tank | A | MP | 1 × 104 |
| 18 | January/1996 | Sink tap water | A/radiology | LP | 3 × 103 |
| 19 | January/1996 | Sink tap water | D/ICU | LP | 2 × 102 |
a
HP, high pressure; MP, medium pressure; LP, low pressure.
b
ND, not determined.