The absence of inhibitor-destroying activity in neurotropic influenza A viruses.
D000818:Animals; D006385:Hemagglutination Inhibition Tests; D051379:Mice; D009422:Nervous System Diseases / Q000382:microbiology; D009439:Neuraminidase / Q000032:analysis*; D009975:Orthomyxoviridae / Q000201:enzymology* / Q000472:pathogenicity; D014774:Virulence
D009439:Neuraminidase