STUDIES ON PREVALENCE OF ANTIBODIES TO TOXOPLASMA GONDII .1. US MILITARY RECRUITS

A nationwide survey of military recruits for toxoplasma antibodies was made using the indirect hemagglutination test [IHA]. A high prevalence of serologic reactionwas demonstrated in the Appalachian area, and a low prevalence in the Rocky Mountain area. There appeared to be no relationship between serologic reactivity and urban or rural residence. Comparisons made between the indirect hemagglutination and methylene blue dye tests indicate that the IHA is a reliable and useful test for survey and for routine purposes.