| Autor: |
Hall, Keri K., Giannetta, Eve T., Getchell-White, Sandra I., Durbin, Lisa J., Farr, Barry M. |
| Zdroj: |
Infection Control & Hospital Epidemiology; August 2003, Vol. 24 Issue: 8 p580-583, 4p |
| Abstrakt: |
AbstractBackground and Objective:CDC has estimated that 23% of Legionellainfections are nosocomial. When a new hospital was being constructed and a substantial increase in transplantation was anticipated, an ultraviolet light apparatus was installed in the water main of the new building because 27% of water samples from taps in the old hospital contained Legionella.This study reports the rate of nosocomial Legionellainfection and water contamination since opening the new hospital.Methods:Charts of all patients with positive Legionellacultures, direct immunofluorescent antibody (DFA), or urine antigen between April 1989 and November 2001 were reviewed. Frequencies of DFAs and urine antigens were obtained from the laboratory.Results:None of the 930 cultures of hospital water have been positive since moving into the new building. Fifty-three (0.02%) of 219,521 patients had a positive Legionellatest; 41 had pneumonia (40 community acquired). One definite L. pneumophilapneumonia confirmed by culture and DFA in August 1994 was nosocomial (0.0005%) by dates. This patient was transferred after prolonged hospitalization in another country, was transplanted 11 days after admission, and developed symptoms 5 days after liver transplant. However, tap water from the patient's room did not grow Legionella.Seventeen (2.5%) of 670 urine antigens were positive for Legionella(none nosocomial). Thirty-three (1.2%) of 2,671 DFAs were positive, including 7 patients (21%) without evidence of pneumonia and 6 (18%) who had an alternative diagnosis.Conclusion:Ultraviolet light usage was associated with negative water cultures and lack of clearly documented nosocomial Legionellainfection for 13 years at this hospital. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
