Antibody Prevalence and Titer to Norovirus (Genogroup II) Correlate with Secretor<i>(FUT2)</i>but Not with ABO Phenotype or Lewis<i>(FUT3)</i>Genotype

Abstract

Nonsecretors and Lea+b- individuals are significantly less prone to be infected with GGII noroviruses. This new information extends previous knowledge and supports the hypothesis that nonsecretors are relatively but not absolutely resistant to norovirus infections.