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SOME INTERMEDIATE INFECTIOUS FORMS OF EASTERN AND VENEZUELAN EQUINE ENCEPHALITIS VIRUSES
ARMY BIOLOGICAL LABS FREDERICK MD
Several infectious entities were produced by treatment of purified EEE and VEE viruses with deoxycholate, digitonin, and acid pH 4.0. These artificially produced incomplete forms were compared with the naturally occurring incomplete forms. The relationships of these units to each other, to free infectious RNA obtained by phenol extraction, and to the intact virus are discussed.