Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Comparison of antibody titers by hemagglutination inhibition (HAI) (A) and microneutralization (B) assays in maternal delivery and infant cord blood pairs, by dose group (circles, 25 μg; crosses, 49 μg). The diagonal lines indicate equal values for the paired maternal delivery and infant cord blood specimens. Points above the line indicate a cord blood titer higher than the maternal delivery titer within each pair.
