Role of IFN-γ in LDV-enhanced antibody-mediated thrombocytopenia. (A) Control or antiplatelet polyclonal rabbit IgG (anti-plt, 3 μg/mouse) was administered 1 day after LDV infection in groups of 3 129/Sv or G129 mice. Platelets were counted 1 day after antibody administration. Individual datum is shown as open dots and means as black dots ± SEM. (B) Control or anti-mouse CD41 monoclonal rat antibody (3 μg/mouse) was administered 1 day after LDV infection in groups of 3 129/Sv or G129 mice. Platelets were counted 1 day after antibody administration. ○ represents each individual datum; •, means ± SEM.