Figure 5From: Modulation of the host Th1 immune response in pigeon protozoal encephalitis caused by Sarcocystis calchasiImmunohistochemical demonstration of CD3+ T-cells (A), and Pax-5+ B cells (B) surrounding the same cerebral blood vessel of pigeon no. 12. Note the dominance of T lymphocytes in perivascular cuffs and the neuropil. Arrows, positive stained B-cells. Bars 50 μm.Back to article page