Anti-SSA antibodies are present in immunoglobulin preparations.
Renate G van der MolenDörte HamannJoannes F M JacobsArnold van der MeerJan de JongChristine KramerPaul F W StrengersJos W M van der MeerPublished in: Transfusion (2014)
Anti-SSA is present in IVIG products and in blood donors without clinical symptoms. IVIG replacement can interfere with ANA and ENA serology by passive transfer of autoantibodies. We hypothesize that such autoantibodies may be causally related to disease manifestations in some recipients.