- Heat inactivation of the neuraminidase and haemagglutinin estimated in the agglutination-separation reactions using red blood cells sensitized with Newcastle disease virusI L Graves
Department of Molecular Microbiology and Immunology, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
Vet Res 30:383-92. 1999..Biological purifications showed that the heat stability of the HA and the lability of the NA were genetically stable...
- Agglutination-separation reactions of red blood cells sensitized with Newcastle disease virus: quantities, agglutination characteristics, and serology of altered virus and HN spikes released following neuraminidase reactivationI L Graves
Department of Molecular Microbiology and Immunology, School of Hygiene and Public Health, The Johns Hopkins University, Baltimore, Maryland 21205, USA
Vet Res 32:475-89. 2001..The NA was inactive for the HA-sialic acid configuration but cleaved fetuin, indicating substrate specificity. An inactive NA would allow time for fusion and NDV penetration rather than elution by an active NA early in NDV infection...