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Mini-epidemics of infection by Pseudomonas and its outbreak

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  1. Summary
  2. Introduction
  3. Methods and patients
  4. Results
  5. Emergence of resistance in treatment
  6. Discussion
  7. Background
  8. Epidemiological investigation
  9. Environmental investigations
  10. Conclusion
  11. Bibliography

Although outbreaks of infections with Pseudomonas aeruginosa pseu extra-mural have been described, this germ is not pathogenic in the immune competent host. For against, it is a major agent of nosocomial infections, especially in the ICU, where he is responsible for pneumonia, urinary or skin infections and bacteremia. Some studies show that nosocomial infections due to Pseudomonas aeruginosa are associated with shorter hospital stays and higher mortality than infections due to other germs.

Pseudomonas aeruginosa can be part of physiological flora of humans, especially in the skin, particularly of the nasopharynx and stool from 2.6 to 24% of people examined. At the hospital, patients may also colonize from exogenous sources, including from other patients colonized or infected. In this case, the germs are probably transmitted primarily through the hands of personnel. infections Pseudomonas aeruginosa are sometimes in the form of outbreaks.

[...] In total, eighteen strains of these patients and sixteen samples were types of environment. The same type was found in patients and 3 (cluster 1). A second type was found in patients and 6 (cluster 2). The strains of the other five patients to 11) had a single type. In one patient (patient two different strains were found. None of the sixteen strains of environmental samples did electrophoretic profile identical to strains found in patients. Patients and 3 (cluster have all stayed together at some point in the same department of SI, mostly contiguous manner. [...]

[...] Since the beginning of the investigation of this outbreak, no new infection has been detected by our microbiology laboratory and no patient readmissions were due to infectious problems occur following a review Urodynamics. Conclusion The alert threshold microbiological after invasive examination should be low. This requires close collaboration between different partners, particularly the microbiology laboratory, the prescribers and those responsible to hospital hygiene. Indeed, the readiness to begin an investigation allows to control the magnitude of an epidemic that may have significant consequences in terms of morbidity and costs. [...]

[...] We describe here an outbreak of three cases of infection with Pseudomonas aeruginosa, two bacteremia and urinary tract infection, CHUV occurred over a period of ten days in patients with a review Urodynamics. Approximately 215 Urodynamics tests are performed each year in the urology department of the CHUV. Urodynamics comprehensive examination consists of two phases. The first is to measure the intravesical pressure at rest, through a catheter to double light type Gaeltec and intra-abdominal pressure via a catheter with balloon. [...]

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