Epidemiology of nosocomial infections: About 70 cases.

Background - The infections associated with care (IAS) constitute a major public health problem by the morbi- mortality than they generate as well as by their cost to support. The prevention of these infections has become a priority for several years everywhere in the world and in the occurrence in Tunisia. Aim - The purpose of our study is to assess the prevalence of nosocomial infections as well as develop their microbiologic  profiles in the different departments of  the hospital of FSI  Marsa Tunisia and try to highlight the risk factors that can influence these infections Methods - It was a retrospective study about  patients with noscomila infection who were admitted in the different care unit of the Hospital of FSI  Marsa and this on a period of 6 years from 1 January 2009 to 31 December 2014 Results - We have identified seventy(70) patients having contracted a nososcomial infection during the period of study for 24600 hospital admission, with a prevalence rate of 0.28%. The unit of intensive care   had the highest prevalence rate (30%), followed by the general surgery unit (17.1%) and orthopaedics (15.7%). Four bacterial species accounted for almost ¾ of germs isolated: Pseudomonas aeruginosa (22.86%), Staphylococcus  ( 15.71%), Klebsiella pneumoniae (15,71 %) and Escherichia coli in 8.75% of the helth care associated infections. Conclusion - Nosocomial infections represent an important indicator of the quality of care. Serious efforts but simple, especially as regards the respect of the rules of aseptic and hand hygiene are effective to significantly reduce the occurrence of infections in hospital.