Figure 1From: Modulation of the host Th1 immune response in pigeon protozoal encephalitis caused by Sarcocystis calchasiEncephalitis of pigeon no. 14 infected with 102sporocysts and negative for S. calchasi by immunohistochemistry and PCR. Note the extensive mononuclear cell infiltration and perivascular cuffing in the cerebrum. H&E stain. Bar, 100 μm.Back to article page