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J Biol Stand. 1989 Jul;17(3):259-66.

Effect of strain differences on the potency testing of rabies vaccines in mice.

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Centre National d'Etudes Vétérinaires et Alimentaires, Laboratoire d'Etudes sur la Rage et la Pathologie, Malzéville, France.


Antigenic differences between several strains of rabies virus, namely CVS, SAD and Flury (LEP) strains, were studied in cross-challenge experiments or cross-neutralization tests performed on sera of mice immunized with vaccines containing each strain. A typical wild fox virus strain was also included as challenge virus. The strain differences affected the relative potencies of the three vaccines in the European Pharmacopoeia mouse protection test for veterinary rabies vaccines, in that higher antigenic values were obtained when the vaccine strain was homologous to the challenge virus. This observation was confirmed by neutralizing antibody induction in mice.

[Indexed for MEDLINE]

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