We report on the results of the 12-month follow-up of children aged 14 to 18 months who received primary and booster vaccinations with either a meningococcal-C vaccine conjugated to tetanus toxoid or CRM197.
Seroprotection (92.8%) and geometric mean titers/serum bactericidal activity (410.5; 95% CI: 273.4–616.3) were higher in children receiving the meningococcal serogroup C tetanus toxoid conjugate, compared with 61.5% and serum bactericidal antibody geometric mean titer of 45.1 (95% CI: 28.5–71.3) when MenC-CRM197 conjugate was used.
From the *Centro Superior de Investigación en Salud Pública (CSISP), Valencia, Spain; and †Vaccine Institute of Valencia (VIVA), Valencia, Spain.
Accepted for publication February 17, 2010.
Supported by Dirección General de Salud Pública, Valencia, Spain. EudraCT 2006-003525-82, and Clinicaltrials.Gov identifier NCT00392808.
Address for correspondence: Javier Diez-Domingo, MD, PhD, Centro Superior de Investigación en Salud Publica (CSISP), Valencia, Avda Catalunya 20, 46021 Valencia, Spain. E-mail: firstname.lastname@example.org.
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