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Updated: Jun 19, 2026

Expression and Purification of Virus-like Particles for Vaccination
Published on: June 2, 2016
IMMUNOLOGICAL AND CHEMICAL INVESTIGATIONS OF VACCINE VIRUS : VI. ISOLATION OF A HEAT-STABLE, SEROLOGICALLY ACTIVE
1Hospital of The Rockefeller Institute for Medical Research.
Abstract:
A method has been described by which a stable, serologically active substance has been isolated in a relatively pure state from tissues infected with vaccine virus. It has the characteristics of an alcohol-soluble protein which is not precipitated by boiling in a neutral aqueous solution. In a dilution of 1:640,000 it gives a precipitate when mixed with a serum containing antibodies against Craigie's S antigen of vaccine virus, but no visible reaction occurs when it is mixed with serum depleted of S antibodies by means of absorption.
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