Figures 2-5

Micrographs of eye section, stained by toluidin blue, from fetuses of Calomys callosus which mothers had been infected perorally with 20 cysts of Toxoplasma gondii. Fig. 6: lens from fetus presenting 16 days of development and 9 days of infection; arrow indicates cysts. Fig. 7: retina adjacent tissues from fetus presenting 16 days of development and 9 days of infection; arrow indicates cyst. Fig. 8: optic nerve from fetus presenting 18 days of development and 13 days of infection; arrows indicate cysts. Fig. 9: retina from fetus presenting 21 days of development and 14 days of infection; arrow indicates cyst. Fig. 10: vitreous of fetus presenting 19 days of development and 12 days of infection, without inflammatory reaction; arrow indicates cysts nearby a blood vessel. Fig. 11: retina from fetus presenting 21 days of development and 14 days of infection; arrows indicate free tachyzoites, without inflammatory reaction. Bar = 10 mm.