RESUMO
We aimed to establish the ecology of the Burns Unit of the Military Teaching Hospital Mohammed V of Rabat. We present results of a retrospective study of four years (March 2006-June 2010) on all micro-organisms isolated from patient samples. During the study period, we analyzed 307 samples corresponding to isolate bacterial strains from 288 non-redundant and 5 yeasts among which 4 corresponded to Candida albicans. The bacteriological profile of the isolated stumps showed a change between 2006 and 2010. Staphylococcus aureus in 2007 and 2008 (52.3%, 33.9%) was in 3rd position in 2010 (10.5%). Acinetobacter baumannii found in 3rd position or below (3.7%, 11.6%, 15.3%), between 2006 and 2008, reached the summit in 2009 and 2010 (22.6% and 23.7%). Pseudomonas aeruginosa, strain dominant in 2006 (33.3%) maintained its second position in 2007, 2008 and 2010 (19.8%, 18.6%, 18.4%) while it was third in 2009 (14.3%). Study of the resistance in antibiotics of the main isolated bacteria showed a stability of the profile of resistance. In conclusion, an epidemiological surveillance of bacteria is necessary, in the burns unit and in the hospital, to guide better the probability antibiotic treatment.