Extract

To evaluate the long-term persistence of the immunogen-icity induced by MenACWY-TT vaccine as compared to Menactra at 11-25 years of age in terms of the percentage of subjects with N. meningitidis serogroup A (MenA), N. meningitidis serogroup C (MenC), N. meningitidis serogroup W-135 (MenW-135), and N. meningitidis serogroup Y (MenY) titers >= 1:8 as measured by a serum bactericidal assay using human complement (hSBA).

Inclusion criteria

• Invasive disease caused by Neisseria meningitidis serogroups A, C W-135 and Y

Links

• euctr