الملخص

 In order to understand the medical effects of heavy metals, the antimicrobial effect of Cd (II) metal ion, Zr (IV) metal ion, Ligand and their complex compounds resulting from their combination, was studied on the growth of gram negative and positive bacteria as well as yeast. It turns out, that all bacterial isolates (Bacillus subtilus, Stapphylococcus aureus and Pseudomonas aeuroginosa, Escherichia coli, Klebsiella pneumonia, Proteus vulgaris, Salmonella typhi, Shigella flexneri and the yeast Candida albicans), have a high resistance of 100% to Colistin (10µg/disc) and Nystatin (10µg/disc), while the Zr (IV) metal is better than Cd metal in its effect on inhibiting the growth of different types of pathogenic bacteria isolated in this study.In the study of minimum inhibition concentration (MIC) of metal Cd (II), Zr (IV) and,  Ligand complexes, on the growth of bacterial isolates, it was also shown that Cd and Ligand 4-bromobenzaldazine (BrA) at the concentration 0.00025g/ml, had an effect of 88 and 100% as the lowest inhibitory concentration for the growth of all bacterial isolates of different species.