Abstract
Background Due to the increase in urinary tract infections and their spread, which requires continued research, especially P. merabilis bacteria, which we highlighted in our study of the phenotypic and molecular aspects of its virulence factors and studying the effect of different concentrations of plant extract on some virulence factors. Methodology 40 samples were collected from the reviewing and inpatients in Ramadi General Teaching Hospital, Women's and Children's Teaching Hospital, and the Industrial College Unit in the Anbar Health Department in Ramadi, for both genders and for all ages for the period from 1/7/2019 to 5/3/2020. Result shows the effect of this plant extract on reducing the efficacy of the protease enzyme produced by the bacteria there were significant significant differences between the treatments and the control. The concentration of 90% of the plant extract gave the best result in reducing the effectiveness of this enzyme compared to the control and the rest of the treatments 30% and 60%
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