Fig. 7.
The isotype pattern of anti-OMP-2 antibodies depends on the adjuvant used for OMP-2 immunization. Specific antibody levels production after s.c. protein immunization against C. pneumoniae. The mean titres of anti OMP-2 IgG (a), IgG1 (b) and IgG2a (c) antibodies were determined in individual serum samples from mice (six per group) immunized with FCA-OMP-2 or CpG OMP-2 or non-treated controls. Differences versus FIA-IS-CpG-OMP-2-immunized or untreated infected mice are significant (P < 0·05, Student's t-test).