Effect of rabbit Ab against HIV-1 peptides on induction of thrombocytopenia in mice. Purified control IgG (Ctl), patient IgG (Pt IgG) and rabbit Ab (25 μg) against wild-type HIV-1 peptide batches 1096, 1098, and 1099 were injected intraperitoneally into Balb/c mice, and platelet counts followed for 24 hours. N=4. SEM is given.