期刊
EUROPEAN JOURNAL OF CLINICAL MICROBIOLOGY & INFECTIOUS DISEASES
卷 34, 期 2, 页码 215-222出版社
SPRINGER
DOI: 10.1007/s10096-014-2232-6
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Colonization of the neonatal gut takes place immediately after birth. Bacteria that get colonized are considered to be normal flora derived principally from the mother and the immediate environment. However, for some neonates, the colonization of the gut, particularly with potential pathogens, may lead to subsequent infections or sepsis. The immune system and the gut barrier in neonates is vulnerable, with decreased acid secretion, low levels of protective mucous, and decreased motility, particularly in those who are premature and of low birth weight. This makes the neonatal gut especially prone to colonization with aerobic Gram-negative bacilli (GNB). And these GNB may later, under circumstances favorable to them, cause disease in the neonates. In developing countries, it is the GNB that cause the majority of the infections. In addition, the use of antibiotics in the neonatal intensive care unit also triggers colonization with antibiotic-resistant bacteria. This review discusses various aspects of neonatal gut colonization, neonatal sepsis, and tries to gather support to understand the connection between the gut and subsequent sepsis in neonates.
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