Figure 4From: Modulation of the host Th1 immune response in pigeon protozoal encephalitis caused by Sarcocystis calchasiImmunohistochemical detection of MHC-II of a pigeon with cerebral lesions in the second phase of disease. Most prominent signaling is discernable in areas of perivasular cuffing of mononuclear cells (left) and areas of necrosis and gliosis (right). Bar, 300 μm.Back to article page