For centuries, the focus was solely on the study of the pathogenic properties of microorganisms. However, how to shows the presence of microbes on the surface as well inside our body does not necessarily mean a state that deviates from physiology. Both skin and mucous membranes of organs such as: nose, mouth, genitals and digestive system are naturally colonized by various microorganisms. The ratio of the number of bacterial cells to the cells of the human body is as much as 1.3:1. Means that the number of bacterial cells inhabiting our the body exceeds the number of human cells. These beneficial bacteria – this whole magical environment we call the…