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Background: The burn unit is a suitable environment for the growth of pathogenic bacteria that can reduce these pathogens by appropriate disinfection methods. So, choosing an appropriate disinfectant and applying standard methods of disinfection can be effective in reducing nosocomial infections. The aim of this study is evaluation of efficacy of current disinfectants on pathogens isolated from surface of different parts of Shahid Sadughi accidents burns hospital in city of Yazd. Methods: In this study, the sampling method has done simple randomly and 240 samples were collected from 30 different parts of hospital surfaces (for every disinfectant 30 samples before and 30 samples after disinfection). The samples in the Microbiology laboratory of Medical Sciences University were cultured on blood agar and EMB agar culture. Colonies that were suspected to pathogens were identified by biochemical tests and their colony count was determined. Data were analyzed using Paired T-test. Results: The average of isolated bacteria at 4 parts of burn unit of hospital before disinfecting by Deconex 50 AF, Descoscid, Epimax SC and Silvosept was 58.02, 18897.28, 30989.05 and 38.52 respectively and after disinfecting was 12.8, 0.62, 1.65 and 5.09 respectively. Reducing of contamination in all disinfectants shown a significant difference (p<0.05). The most common isolated pathogens were Pseudomonas aeruginosa, Klebsiella, staphylococcus aureus, Enterobacter and Escherichia coli. Conclusion: The results showed that all disinfectants was effective on isolated pathogens and also have shown a significant difference (p<0.05) between the average of bacteria count before and after disinfection. Keyword: Disinfectant, Pathogen, Burn unit, Nosocomial infections D ow nl oa de d fr om je he .a bz um s. ac .ir a t 1 7: 55 + 03 30 o n T ue sd ay D ec em be r 18 th 2 01 8 [ D O I: 10 .1 88 69 /a ca dp ub .je he .3 .2 .9 3 ]

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The Effectiveness Evaluation of Current Disinfectants on Pathogens Isolated from Surface of Different Parts of Shahid Sadughi Accidents Burns Hospital in City of Yazd