Role of human microflora in health and disease.

摘要: The human host and its microbial flora constitute a complex ecosystem whose equilibrium serves as remarkable example of reciprocal adaptation. Intestinal bacteria play an important role in the development immune system. normal intestinal is responsible for resistance to colonization by exogenous pathogenic microorganisms. Nevertheless, it also constitutes reservoir potentially close contact with host. These are opportunistic infections immunocompromised hosts. can be upset antibiotics, leading result proliferation antibiotic-resistant bacteria.