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. 1999 Dec;80(6):335–348. doi: 10.1046/j.1365-2613.1999.00132.x

Figure 2.

Figure 2

Anti-S. rectivirgula serum antibody in BALB/c (▪) and C3H/HeJ (•) mice after 3 i.t. inoculations with S. rectivirgula. Results are expressed as Optical density units which are the optical density multiplied by the dilution factor. a, Antigen specific IgG1. b, Antigen specific IgG2 Mean, standard error of the mean. Two-way analysis of variance indicated that there was a significant (P < 0.05) effect of both the strain classification (i.e. BALB/c and C3H/HeJ), and the time from immunization.