Immunohistochemical localization of Aβ associated with T. canis larvae in BALB/c CNS. Signal for Aβ was located only on the surface and in the intestine of found larvae in 8 WPI (A) and 16 WPI (B) as well. The position of sectioned larvae is depicted by white lines in the bright field photos. Beyond the round shape in the cross section, the larvae can be distinguished by smaller nuclei packed more densely within the parasite tissues. Three mice per time point and at least three larvae-positive slides per mouse were analyzed. Aβ, amyloid-β; WPI, weeks post infection. Scale bars: 20 μm.