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. 1990 Jan;18(1):39-43.
doi: 10.1016/1045-1056(90)90068-b.

Free haemagglutinin in inactivated whole virus influenza vaccines

L N Kastrikina  1 , V I Minaev, N I Lonskaya, G I Bizhanov
Affiliations

Free haemagglutinin in inactivated whole virus influenza vaccines

L N Kastrikina et al. Biologicals. 1990 Jan.

Abstract

While studying the haemagglutinin content of whole virus inactivated influenza vaccines by the single radial diffusion test and quantitative electron microscopy, it was found that not all haemagglutinin measured by single radial diffusion was bound to virions, a part of it being in a free state. The influence of unbound haemagglutinin on the immunogenicity of whole virus inactivated influenza vaccine is discussed. In addition, the use of single radial diffusion for the assessment of unbound haemagglutinin is suggested.

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