OPA titers following PPSV@ given @ year after PCV@ ( PCV@/PPSV@ ) ( a ) were noninferior for the @ common serotypes and significantly higher for @ of @ common serotypes than those following only an initial PPSV@ ; and ( b ) were significantly higher for @ of @ common serotypes compared with PPSV@ followed by PCV@ ( PPSV@/PCV@ ) .