Figure 1

Micrographs of eye section, stained by toluidin blue, from Calomys callosus, adult male, after 21 days of being treated with one of the following conditions. Fig. 2: immunization with S-antigen. Fig. 3: immunization with S-antigen plus jacalin. Figs 4, 5: immunization with S-antigen plus infection with 20 cysts of Toxoplasma gondii. Bar = 10 mm.