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Updated: Oct 7, 2026

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
09:01

An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection

Published on: December 10, 2013

[Virus and respiratory allergy in children]

J C Dubus1, E Bosdure, M Mates

  • 1Service de Médecine Infantile-Hôpital d'Enfants de la Timone-264, rue Saint-Pierre-13385 Marseille.

Allergie Et Immunologie
|May 8, 2001
PubMed

Insights

Viral infections in children can increase or decrease the risk of developing atopy and asthma. The timing and type of viral exposure, such as respiratory syncytial virus or measles, appear to influence immune responses and allergy development.

Area of Science:

  • Pediatric Allergy and Immunology
  • Viral Immunology
  • Respiratory Health

Context:

  • The relationship between viral infections and the development of respiratory allergies like atopy and asthma in children is complex and not fully understood.
  • Conflicting evidence exists regarding the impact of early-life viral exposures on allergy risk.
  • Viral infections may play a role in modulating pre-existing atopic conditions.

Purpose:

  • To explore the dual role of viral infections in childhood respiratory allergy.
  • To investigate how different viruses and exposure timings influence immune responses (Th1/Th2).
  • To clarify the mechanisms by which viruses may either promote or protect against atopy.

Summary:

  • Viral infections, such as respiratory syncytial virus, are linked to an increased risk of atopy and asthma in children.
  • Conversely, early-life exposure to viruses, potentially through daycare attendance, and specific viruses like measles and hepatitis A may reduce allergy development.
  • Viruses appear to modulate the expression of atopic status by influencing T-helper cell responses (Th1/Th2).

Impact:

  • Provides insights into the complex interplay between viral infections and the pediatric immune system.
  • Highlights the need for further research into specific viral triggers and protective factors for allergies.
  • Informs potential strategies for allergy prevention or management based on viral exposure patterns.

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