TABLE 1.

Measles-neutralizing serum antibody concentrations by 3-month age groups in France in 2006

Age group (mo)No. of infants evaluatedNo. of infants with Ab concn over detection limitaGMC (mIU/ml)b95% CIRange (minimum-maximum) (mIU/ml)
0-348461,094.56746.69-1604.5044.00-7,968.00
3-64538186.97137.06-255.0633.80-1,596.50
6-9943764.5250.51-82.4118.00-400.50
9-121151440.6120.68-79.7413.50-1,277.00
>1246534.1816.7-69.9321.30-80.00
Total348140
  • a Ab, antibody.

  • b A significant difference (P < 0.001) was observed between the GMCs of the five age groups.