• 1 October 1972
    • journal article
    • Vol. 23  (4) , 503-21
Abstract
Rhesus monkeys were immunized with defined strains and variants of Plasmodium knowlesi and their immunity on challenge was correlated with serum levels of schizont agglutinins and specific inhibitory antibody assayed by in vitro parasite culture. The results indicate that the inhibitory antibody provides a consistent index of immune status and probably represents the protective antibody which initiates specific immune reactions in vivo. The relationship between inhibitory and schizont agglutinating antibodies is discussed.