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The impact of differential antiviral immunity in children and adults

Andrew J Prendergast1, Paul Klenerman, Philip J R Goulder

  • 1Centre for Paediatrics, Blizard Institute, Queen Mary University of London, Newark Street, London E1 2AT, UK.

Nature Reviews. Immunology
|August 25, 2012
PubMed

Insights

Infants

Area of Science:

  • Immunology
  • Virology
  • Developmental Biology

Background:

  • Early life immune system adaptations balance protection and susceptibility.
  • Neonatal immunity protects against extracellular pathogens but not intracellular ones.
  • Infants are vulnerable to perinatal viral infections like HIV, HBV, and CMV.

Purpose of the Study:

  • To review age-specific immune responses to perinatal viral infections.
  • To compare the impact of HIV, hepatitis B virus (HBV), and cytomegalovirus (CMV) in infants versus adults.
  • To inform strategies for preventing and treating these infections in early life.

Main Methods:

  • Literature review focusing on immune maturation and viral pathogenesis.
  • Analysis of age-dependent differences in antiviral immunity.
  • Synthesis of findings related to HIV, HBV, and CMV infections.

Main Results:

  • Immune system development creates distinct vulnerabilities in infants.
  • Differential susceptibility to intracellular pathogens is linked to age-specific immunity.
  • HIV, HBV, and CMV infections have varying impacts based on the host's immune maturity.

Conclusions:

  • Understanding age-specific immunity is crucial for managing perinatal viral infections.
  • Tailored prevention, treatment, and vaccine strategies are needed.
  • Minimizing the global disease burden of these infections requires age-focused approaches.

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