CD9 and infection: The functions of MICs during host cell invasion suggest they might be potential candidates for vaccines development against the infection of Eimeria. The gene sequences of E. tenella MIC1 (AF032905.1), MIC2 (KC333870.1), MIC3 (AY512382.1), MIC4 (AJ306453.2), MIC5 (AJ245536.1) and AMA1 (JN032081.1), E. maxima MIC2 (FR718971.1), MIC3 (FR718972.1), MIC5 (FR718974.1) and MIC7 (FR718975.1) and E. necatrix MIC5 (EU335049.1) were published in GenBank.