Abstract
Immunization of mice with influenza virus A/Japan/305/57 (H2N2) gives protection against infection with the homologous strain, but not against infection with A/Hong Kong/1/68 (H3N2) and A/Equi/Miami/1/63 (Heq2Neq2). Immunizations with these two strains result in a protection against homologous and cross infections with A/68 or A/Equi-2/63, although there is hardly a cross-hemagglutination or neuraminidase-inhibiting antibody level. These immunizations do not protect against infection with A/57.
The presence of an unknown antigenic component (Mice Protecting Antigen: MPA) is suggested and some of its characteristics are discussed.
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In collaboration with the Chief Medical Officer of Health and Epidemiology, Department of Public Health, The Hague, the Netherlands.
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Masurel, N., Baars, A.J. & Frankena, H. Vaccination and protection experiments in mice with the human A-1957 and A-1968 strains, and the Equi-2 strain of influenza virus. Antonie van Leeuwenhoek 39, 461–471 (1973). https://doi.org/10.1007/BF02578889
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DOI: https://doi.org/10.1007/BF02578889