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Published on: May 15, 2014
The immunogenetics of smallpox vaccination
Samuel L Stanley1, Sharon E Frey, Patricia Taillon-Miller
1Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA. stanleys@msnotes.wustl.edu
The Journal of Infectious Diseases
|June 16, 2007
Summary
Genetic differences in immune responses influence fever after smallpox vaccination. Specific gene variations (haplotypes) in interleukin genes (IL-1, IL4, IL18) predict fever risk, potentially aiding in preventing adverse vaccine reactions.
Area of Science:
- Immunogenetics
- Vaccinology
- Pharmacogenomics
Background:
- Fever is a common adverse event following smallpox vaccination.
- Individual susceptibility to vaccine-induced fever varies.
- Genetic factors may underlie differential immune responses to vaccinia virus.
Purpose of the Study:
- To investigate the association between genetic variations and the development of fever after smallpox vaccination.
- To identify specific gene polymorphisms and haplotypes linked to fever susceptibility.
- To explore the potential of genetic markers in predicting adverse reactions to live virus vaccines.
Main Methods:
- Case-control study design involving 346 individuals with assessed clinical responses to smallpox vaccination.
- Genotyping for single-nucleotide polymorphisms (SNPs) in 19 candidate immune-response genes.
- Haplotype analysis to determine associations with fever development.
Main Results:
- Specific haplotypes within the interleukin (IL)-1 gene complex and the IL18 gene were significantly associated with fever post-vaccination.
- A particular IL4 gene haplotype demonstrated a strong protective effect against fever in vaccinia-naive individuals.
- These genetic markers predict varying likelihoods of fever development after smallpox vaccination.
Conclusions:
- Genetic variations, particularly in IL-1, IL4, and IL18 genes, influence the development of fever following smallpox vaccination.
- Identified haplotypes can predict altered susceptibility to vaccine-induced fever.
- These findings may extend to predicting fever risk for other live virus vaccines, aiding in adverse event management.
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