Humoral response to <i>T. pallidum</i> antigens in MyD88^−/− and WT mice.

<p>Sera from mice were collected 21 and 84 days post-challenge and immunoblotted against treponemal lysates for <i>T. pallidum</i>-reactive IgG abs. Representative immunoblots are shown: lane 1, day 21 MyD88^−/− serum; lane 2, day 21 WT serum; lane 3, day 84 MyD88^−/− serum; lane 4, day 84 WT serum; lane 5, serum from an immune rabbit infected with <i>T. pallidum</i> for at least 60 days.