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[The cell-mediated response after measles vaccination]
S Pala1, G Crimaldi, R Consolini
1Istituto di Clinica Pediatrica, Università di Pisa, Italia.
La Pediatria Medica E Chirurgica : Medical and Surgical Pediatrics
|September 23, 1998
Summary
Measles vaccination in children temporarily reduces cellular immune responses, specifically T cells (CD3+). This functional immunosuppression highlights the need for optimized immunization strategies considering vaccine factors and recipient characteristics.
Area of Science:
- Immunology
- Virology
- Pediatrics
Context:
- Measles infection causes immune dysfunction.
- Live measles virus vaccine may induce similar, milder effects.
- Previous studies on vaccine-induced immune response in vitro are conflicting.
Purpose:
- To investigate cellular immune parameters in children post-measles vaccination.
- To analyze T cell subsets (CD3+, CD4+, CD8+) and in vitro proliferative responses.
Summary:
- Children aged 3-12 years showed significantly reduced CD3+ T cells post-vaccination.
- The CD4+/CD8+ ratio remained normal.
- In vitro proliferative response to mitogens was also significantly reduced, indicating functional immunosuppression.
Impact:
- Confirms functional immunosuppression of cellular immunity following measles vaccination in children.
- Enhances understanding of measles virus-induced immune response mechanisms.
- Provides insights for developing improved immunization strategies tailored to specific populations and vaccine types.