The distribution of normal intestinal flora changes in the different gut segments and is influenced by gastric pH, peristalsis, bactericidal activity of Immunoglobulins A (locally produced). Saprophytic bacteria prevent the growth of pathogenous microorganisms, partake in the production of vitamins (K, B group), can be responsible for the production of carcinogens and co-carcinogens by acting on bile-acids, food or drugs ingested, can affect the morphology of the intestinal mucosa. Enteroviruses are transient intestinal microorganisms, responsible for infectious disease whose highest incidence is summer and autumn, whose frequency is particularly elevated in malnourished subjects.
[Infectious agents in the G.I. tract diseases (author's transl)] / Magnani, G; De Simoni, M; Ferrari, C; Giuberti, T; Pedretti, G; Sacchini, D; Spadini, G. - In: ATENEO PARMENSE. ACTA BIO-MEDICA. - ISSN 1123-7325. - 51:4(1980), p. 311-21.
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