Effects of MHC class I<i>A</i> and I<i>B</i> haplotypes on IgG anti-Env antibodies and neutralizing Ab following infection with SHIV<sub>SF162P4cy</sub>.
<p>Mean values with standard error are depicted for all animals positive or negative for the indicated haplotype: M4 (n = 6) non-M4 (n = 15) class I<i>A</i>; M4 (n = 7), non-M4 (n = 14) class I<i>B</i>.</p