Results of Rec-ELISA using rSporoSAG, rBAG1, and rGRA1 proteins probed with mouse sera.

<p><i>Anti-</i>SporoSAG IgM (<b>A</b>) and IgG (<b>B</b>) responses of mice infected with oocysts. <i>Anti-</i>BAG1 IgM (<b>C</b>) and IgG (<b>D</b>) responses of mice infected with tissue cysts. <i>Anti-</i>GRA IgM (<b>D</b>) and IgG (<b>E</b>) responses of mice infected with oocysts and tissue cysts. Significant increase or decrease in the mean AV is represented by (*), (**), and (***) for <i>P</i><0.05, <i>P</i><0.01, and <i>P</i><0.001 respectively. Each mean AV is derived from sera of 6 mice. Sera have been collected from each mouse prior to infection and 1, 2, 3, 6, 10, 15, 40, and 120 days after infection.