Microbiota is composed of different bacterial populations with a mutualistic relationship that reside in the epithelial barriers of different organs in the host. Microbiota is a metabolically active ecosystem that interacts with epithelial and stromal cells, with a critical role in human health. Microbiota carries out different functions such as the production of diverse important metabolites, the prevention of infestation by pathogens, and the control of the overgrowth of some bacterial groups to prevent the modulation of the local environment by toxic bacteria [1]. In addition, microbiota is essential for the activation of the host immune system [2].