FURTHER CONTRIBUTIONS TO THE STUDY ON ASCARID IMMUNITY

Abstract

Studying on ascarid immunity of the infected guinea-pigs, we obtained the next results : 2. The polysaccharide fraction of the pig ascarid ingredient is somewhat labil in its desolved state, its specific antigenity decreasing gradually during several months. 2. In every point the polysaccharide fraction of the pig ascarid ingredient is quite similar to that of the ascarid metabolites, after the results of the skin test, chromatography and melting-points. 3. Regarding the protein fraction of the pig ascarid ingredient, the albumin- and globulin-components show no distinct difference after the results of the skin test. 4. The acquirement of the antigenity during the development of the ascarid eggs may not depend on the qualitative change of the components, but on the number of germ cells. 5. No difference was proved in their antigenity between the organs of the ascarid; skin, reproductive organs, intestine and body cavity fluid.