摘要:A new method for the removal of non-specific inhibitors of rabies virus haemagglutinin has been developed. Treatment with colloidal silicic acid (Aerosil) or with acetone plus Aerosil reduced the non-specific inhibitors in human, mouse, and dog sera to a level that was undetectable at the 1:4 starting dilution in the haemagglutination inhibition test. Bromelain-treated goose erythrocytes were much more susceptible to haemagglutination by rabies virus than were untreated erythrocytes, and the sensitivity of the haemagglutination inhibition test was considerably increased by using bromelain-treated erythrocytes. Low levels of antibodies in sera from immunized human subjects were detected with higher sensitivity by combining Aerosil treatment of the sera with the use of bromelain-treated goose erythrocytes in the haemagglutination inhibition test. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.0M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 883 884 885 886 887 889 890 891 892