IgG responses against the C-terminal recombinant proteins of the MSP3 family in mice immunized with the new multigenic construct. Groups of five BALB/c (□) and C57BL/6J (▪) mice were immunized with the multigenic construct, and IgG responses were tested by ELISA after two, three, and four injections against MSP3-1(a-f), MSP3-2, MSP3-3, MSP3-4, MSP3-7, or MSP3-8. The results are expressed as mean titers ± the SD.