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. Author manuscript; available in PMC: 2009 Aug 26.
Published in final edited form as: Vaccine. 2008 Jul 18;26(36):4676–4685. doi: 10.1016/j.vaccine.2008.06.099

Table 1.

Antibody titers obtained from immunized mice

ELISA titersa
Immunogen Alum-immunized group c-di-GMP-immunized group
Total IgG IgG1 IgG2a Total IgG IgG1 IgG2a
PdB 30,000 40,000 8,000 60,000 40,000 25,000
(28,200 ± 3,250) (54,200 ± 5,800)
PspA 30,000 35,000 8,000 140,000 160,000 50,000
(24,700 ± 1,600) (112,000 ± 17,200)
Alum <500 ND ND ND ND ND
c-di-GMP ND ND ND <500 ND ND
a

ELISA titers were determined as the reciprocal of the dilution of sera giving 50% of the highest absorbance reading above the background at 405nm. Values in parenthesis represent mean antibody titers ± SEM from six individual mice.

ND= Not Determined.