However, after stratification (Fig. 5b), only nAb titers assessed in standard Vero and Vero DC-SIGN cells using mature virions were correlated with protection from symptomatic infection in the post-primary group (n = 29) (OR 0.62, 95% CI 0.38–0.88; OR 0.09, 95% 0.01–0.52, respectively) and with mature virions in standard Vero cells in the post-secondary group (n = 32) (OR 0.72, 95% CI, 0.5–0.95) (Fig. 5b and Supplementary Table S1). The gene discussed is CD209; the disease is infection.