Figure 4 From: Vaccination response to tetanus toxoid and 23-valent pneumococcal vaccines following administration of a single dose of abatacept: a randomized, open-label, parallel group study in healthy subjects Percentage of subjects achieving at least a twofold increase in antibody titers for individual pneumococcal serotypes. (a) 14 days after vaccination and (b) 28 days after vaccination.Back to article page