Proportion of infants with IgG concentrations of ≥ 35µg/ml following 2 and 3 doses of PCV-7.

<div><p>The proportion of infants with serum anti-capsular IgG antibody concentration ≥ 35µg/ml, a putative measure of protection against invasive pneumococcal disease, following vaccination with PCV-7. Vaccine was administered at 6,10 and 14 weeks of age or at 6,14 and 40 weeks of age. Antibody concentrations were assessed after the second and after the third dose in the series.</p> <p>PCV-7= 7-valent Pneumococcal Conjugate Vaccine, IgG = Immunoglobulin G.</p>