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Smallpox vaccine is highly effective, inducing protective immunity to smallpox and diseases caused by related orthopoxviruses. Smallpox vaccine efficacy was historically defined by the appearance of a lesion or “take” at the vaccine site, which leaves behind a characteristic scar. Both the take and scar are readily recognizable and were used during the eradication effort to indicate successful vaccination...
We explored associations between SNPs in cytokine/cytokine receptor genes and cellular immunity in subjects following primary smallpox vaccination. We also analyzed the genotype–phenotype associations discovered in the Caucasian subjects among a cohort of African-Americans. In Caucasians we found 277 associations (p<0.05) between gene SNPs and inter-individual variations in IFN-α, IL-12p40, IL-1β,...
We performed a genome-wide association study (GWAS) of antibody levels in a multi-ethnic group of 1071 healthy smallpox vaccine recipients. In Caucasians, the most prominent association was found with promoter SNP rs10489759 in the LOC647132 pseudogene on chromosome 1 (p=7.77×10 −8 ). In African-Americans, we identified eight genetic loci at p<5×10 −7 . The SNP association with...
Besides natural disasters and naturally occurring novel infectious diseases, nothing potentially threatens the health and stability of nations and health systems as much as the devastating threat and unfathomability of bioterrorism. Other than attempts at political solutions and interdictive attempts, only antimicrobials and vaccines offer possible means for protection. Of these, vaccines offer the...
There are no data currently available on gender and racial variation in smallpox vaccine immune responses. We recruited 1076 healthy adults 18–40 years old who received one dose of the US-licensed smallpox vaccine (Dryvax ® ). Vaccinia neutralizing antibody titers in each subject's serum were determined using a high throughput neutralization assay based on a recombinant, β-gal expressing vaccinia...
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