Effect of age and prime-boost vaccination on avidity index of serum HI antibodies.

<p>Serum samples collected at 2 or 5 weeks post vaccination at 1 day of age or 2 weeks post boost-vaccination (5 weeks of age) were tested for their avidity as previously described [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0195285#pone.0195285.ref043" target="_blank">43</a>]. (A) Age effect. (B) Prime-boost effect. Groups are arranged as described in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0195285#pone.0195285.g005" target="_blank">Fig 5</a>. Different letters inside the plot indicate significant differences between groups (p<0.05).