Volume 12, Number 6—June 2006
Research
Haemophilus influenzae Type b Reemergence after Combination Immunization
Figure 1
![Geometric mean anti-polyribosyl-ribitol phosphate antibody concentration before booster (95% confidence intervals) in 2- to 4-year-old children, according to number of doses of acellular pertussis (aP) containing Haemophilus influenzae type b combination vaccines received in infancy. Number of participants is shown in parentheses. GMC, geometric mean concentration.](/eid/images/05-1451-F1.gif)
Figure 1. Geometric mean anti-polyribosyl-ribitol phosphate antibody concentration before booster (95% confidence intervals) in 2- to 4-year-old children, according to number of doses of acellular pertussis (aP) containing Haemophilus influenzae type b combination vaccines received in infancy. Number of participants is shown in parentheses. GMC, geometric mean concentration.
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