Abstract:
Antibiotics are natural substances produced by the fungi or bacteria as a way of fighting against the pathogenic organisms. Unit now were identified many mechanisms by which bacteria develops their resistance to antibiotics. This natural biological process leads to the survival of the most resistant strains, which denotes the complexity of the investigated theme of research. The obtained results confirms the importance of the microbiological results by using diverse methods of investigation of the sensibility and resistance of microorganisms towards antibiotics.