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  • Title: Reactogenicity and immunogenicity of whole and ether-Tween-split influenza A virus vaccines in volunteers.
    Author: Jennings R, Clark A, Oxford JS, Hockley DJ, Potter CW.
    Journal: J Infect Dis; 1978 Nov; 138(5):577-86. PubMed ID: 712115.
    Abstract:
    Two separate, double-blind studies were carried out in volunteers to compare the reactogenicity of, and serum antibody responses to, whole or ether-Tween-split inactivated influenza virus vaccines. In both studies the ether-Tween-split vaccines induced a lower rate of reactions. The serum hemagglutination-inhibiting (HAI) antibody response of volunteers to the A/Scotland/74 component of the split vaccine used in the first study was significantly greater than that following inoculation of A/Scotland/74 whole-virus vaccine. The neuraminidase-inhibiting (NI) antibody responses of the volunteers to each vaccine were similar. In the second study, a markedly better NI antibody response to the influenza A virus component was seen following immunization with split-virus vaccine, but the HAI antibody response to both split and whole vaccines was the same. In both studies the serum HAI antibody responses to the B/Hong Kong/73 component of the vaccines were similar. Challenge of the volunteers with attenuated influenza viruses homologous to the influenza A component of the vaccines showed both types of vaccines to be protective.
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