Immunization of Mice Against Encephalomyocarditis Virus I. Purification, Concentration, and Inactivation of Encephalomyocarditis Virus

Author:

Bogaerts W. J. C.1,Durville-van der Oord B. J.1

Affiliation:

1. Medical Biological Laboratory TNO, Department of Microbiology, 139, Lange Kleiweg, Rijswijk (ZH), The Netherlands

Abstract

Methods are described for the concentration, purification, and inactivation of encephalomyocarditis virus grown in L-cell suspension cultures. Virus concentrates were obtained by the precipitation of crude virus lysates with polyethylene glycol and were purified by Genetron extraction. After column chromatography approximately 70% recovery of infectivity and hemagglutination (HA) activity was found. Exposure of the purified virus suspensions to ultraviolet light resulted in reduction of the infectivity by a factor of 10 9 with little or no loss of HA activity. The preparations are being evaluated as vaccines.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Immunology,Microbiology,Parasitology

Reference21 articles.

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