The Duration of Antibody-Formation after Injection of Killed Typhoid Bacilli in Water-in-Oil Emulsion

Abstract

Agglutinins against typhoid bacilli were found in the sera of one group of rabbits after 3 years and 1 month following 2 simultaneous subcutaneous injections and in another group of rabbits, 3 years and 5 months after the second subcutaneous injection of killed typhoid bacilli suspended in salt solution and incorporated into a mixture of a lanolin-like substance and oil.