TABLE 2.

Anti-SpsA, anti-CbpA, and anti-Ply IgG antibody levels in adenoidal MNC from 20 children after stimulation by CCS derived from wild-type (D39), Ply⁻, and CbpA⁻ pneumococci

Prepn	Level of IgG antibodies (U/ml) toa:
	SpsA	CbpA	Ply
Wild-type CCS	5.78 (1.19)	5.95 (1.29)	1.95 (0.36)
Ply− CCS	5.98 (1.25)	6.02 (1.32)	0.58 (0.19)b
CbpA− CCS	1.52 (0.31)b	1.61 (0.33)b	1.89 (0.34)
Mediumc	1.28 (0.27)	1.32 (0.29)	0.49 (0.16)

^aThe values are means (standard deviations).

^bP < 0.01 compared to the data for wild-type CCS.

^cBacterial culture medium only.