Study of different kinds of pathogens isolated from gowns of Shohadaye-Ashayer hospital personnel's during 2002-2003 time period

Since recogntion of probable reservoirs of nosocomial infections is important for determining the kinds and antibiogram pattern of hospital pathogens in Shohadaye-Ashayer hospital environment, this descriptive cross- sectional study was done. Totally, 1020 gowns were sampled in an interval of one month and three times of sampling. Samples were carried to laboratory in thioglycolate broth medium, and incubated for 24-48 hours at 37ºC in BHI agar or tripticase soy agar, Macconky agar and Sabrod Dexterose agar. Colonies were identified and antibiogramed by kerby- Buear method and results analyzed by SPSS version 7.5 software. Results showed that 100% of gowns were positive at least in one or three times of sampling. Acinetobacter species were the most common type of isolated bacteria (27.47% of the cases) and the most contaminated wards were emergency and outpatient operation room. In general, among isolated bacteria, the following five groups were the most prevalent bacteria respectively: Acinetobaccter species, Corynebacterium species, Enterobacteriaceae, Bacillus species, and Psuedomonaseae species. All of the isolated bacteria were susceptible to aminoglycosids and relatively resistant to beta- lactams.