Fig. 3From: Co-immunization with two recombinant Eimeria tenella lines expressing immunoprotective antigens of E. maxima elicits enhanced protection against E. maxima infectionProtection against E. maxima infection provided by co-immunization with Et-EmAMA1 and Et-EmIMP1. a–c Oocyst output after challenge with E. maxima in the chickens immunized with or without Et-EmIMP1 and/or Et-EmAMA1 or its wild-type at 14 (a), 21 (b) and 42 dpi (c). *P < 0.05, **P < 0.01Back to article page