Infectious Microecology and Immunology

摘要: Infectious microecology is a branch of that uses microecological theory and methods to investigate the appearance, development outcome infection. The main purpose this chapter pathogenesis infection its clinical manifestations, preventions therapies. Under normal conditions, gut microflora exists in state equilibrium with host has been described as separate “organ” adapted human physiology. From moment birth, neonatal intestine confronted potent immunostimulatory substances while body surfaces are protected from environmental microbial exposure during fetal life [1]. Microbial antigenic challenge required for maturation several physiological anatomical functions intestinal epithelial barrier (IEB) [2]. Commensal bacteria regulate innate adaptive immunity provide stimuli ongoing repair restitution IEB [3]. Colonization by pathogenic (or) dysmature response antigen may result flagrant inflammatory [4].