Figure 2From: Modulation of the host Th1 immune response in pigeon protozoal encephalitis caused by Sarcocystis calchasiImmunohistochemical labelling of a schizont with polyclonal antiserum to S. calchasi in the brain of pigeon no. 7 during the first phase of disease. No associated cellular immune reaction or necrosis is discernible. In total, three schizonts were identified in consecutive section of the brain of this pigeon. Bar, 30 μm.Back to article page