Figure 6

Sensitivity of maternal and infant env to neutralization or inhibition. The sensitivity of infant and maternal clones to (A) autologous maternal IgG, (B) NAbs, (C) pooled seropositive plasma and (D) entry inhibitors was determined using pseudovirus infection of TZMbl cells. (A) Neutralization IC₅₀ of maternal and infant env clones. Lines indicate maximum concentration of IgG. (B-D) Values are an average of two different pseudovirus stocks run in the same experiment. Solid lines indicate infant and maternal means. Dotted lines in (B) indicate maximum concentration of NAb used. Filled triangle = infant, empty circle = maternal. Pairwise statistical analysis performed using the Mixed Model ANOVA with mother-infant pairings included as random effects indicated that mean maternal and infant IC₅₀ did not vary significantly across pairs.