FIG. 1.

Association between Qa-2 expression and resistance to T. crassiceps cysticercosis in BALB/cAnN × (C57BL/6J × BALB/cAnN)F₁ and BALB/cAnN × (BALB/cJ × BALB/cAnN)F₁ backcross male and female mice. Mice were classified according to the expression of Qa-2 protein as determined by flow cytometric analysis. Each point corresponds to the individual number of parasites recovered from each mouse 30 days after intraperitoneal infection with 10 T. crassiceps cysticerci. The bars represent mean parasite numbers for each experimental group. The numbers of cysticerci found in Qa-2⁺ mice were statistically lower (P < 0.01) than those found in Qa-2 null mice.