Why are preterm newborns at increased risk of infection?

Collins A, Weitkamp JH, Wynn JL
Arch Dis Child Fetal Neonatal Ed. 2018 103 (4): F391-F394

PMID: 29382648 · PMCID: PMC6013388 · DOI:10.1136/archdischild-2017-313595

One in 10 newborns will be born before completion of 36 weeks' gestation (premature birth). Infection and sepsis in preterm infants remain a significant clinical problem that represents a substantial financial burden on the healthcare system. Many factors predispose premature infants for having the greatest risk of developing and succumbing to infection as compared with all other age groups across the age spectrum. It is clear that the immune system of preterm infants exhibits distinct, rather than simply deficient, function as compared with more mature and older humans and that the immune function in preterm infants contributes to infection risk. While no single review can cover all aspects of immune function in this population, we will discuss key aspects of preterm neonatal innate and adaptive immune function that place them at high risk for developing infections and sepsis, as well as sepsis-associated morbidity and mortality.

© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

MeSH Terms (10)

Adaptive Immunity B-Lymphocytes Humans Immunity, Cellular Immunity, Innate Immunoglobulins Infant, Premature Infant, Premature, Diseases Infections Sepsis

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