A comparison of two anti‐neuraminidase monoclonal antibodies by complement activation

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Abstract
The specificities of two anti‐neuraminidase monoclonal antibodies have been compared by their ability to fix complement. They were found to differ to some extent in their reactivity with a range of N2 influenza viruses. Thus, as in the case of anti‐hemagglutinin antibodies, anti‐neuraminidase monoclonal antibodies are able to detect subtle structural changes in the viral antigen. Although both monoclonal antibodies fixed complement with intact virus, neither one fixed complement when complexed with isolated neuraminidase “heads”.

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