The Journal of Experimental Medicine, Vol 78, 447-463,
Copyright, 1943, by The Rockefeller Institute for Medical Research New York
NEUTRALIZING AND COMPLEMENT-FIXING ANTIBODY PRODUCTION AND RESISTANCE FOLLOWING VACCINATION IN EXPERIMENTAL ENCEPHALITIS INFECTIONS
J. Casals M.D.1
1 From the Laboratories of The Rockefeller Institute for Medical Research, New York
In mice vaccinated subcutaneously with different doses of virulent W.E.E. virus or with formolized vaccine, neutralizing and complement-fixing antibodies paralleled resistance to some extent yet appeared in groups in which resistance remained undetectable, persisted at a similar maximum level in spite of different titers of resistance, and after resistance had become negligible.
In mice vaccinated subcutaneously with different doses of virulent St. Louis encephalitis virus or with formolized vaccine, neutralizing and complement-fixing antibodies bore little relation to resistance. Neutralizing antibodies appeared only in the group showing resistance but not until resistance was diminishing. Complement-fixing antibodies developed equally well in groups with or without resistance.
Submitted on August 11, 1943