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.
Levels of IgG to UspA1, UspA2, and M. catarrhalis O35E in normal children’s sera. The data plotted on the ordinate axis are log10-unit-transformed ELISA endpoint titers. The individual titers were plotted by age group. The geometric mean titers and the standard errors for each age group are indicated.
