Abstract
Summary
The nonspecific inhibitor(s) of rubella-virus hemagglutination were removed from human serum by the rapid, simple, and specific procedure of adding manganous chloride and heparin to the serum. This procedure was shown to precipitate preferentially β-lipoprotein without altering the immunoglobulin level in serum. The rubella-virus HI antibody titers after M-H treatment were equal to, or greater than, that after kaolin absorption and correlated in a high degree to neutralizing antibody titers.
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