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Mean antibody responses ± SEM to M. bovis CFP in animals vaccinated with BCG alone (▪), BCG-CFP-DDA-PIM (▴), BCG-CFP-DDA-MPL (•), BCG-CFP-DDA-Pam3CSK4 (*), or BCG-DDA-MPL (⧫) and nonvaccinated animals (⋄). The results are expressed as a percentage in relation to that for a strongly positive control serum.
