Bone-marrow eosinophilia in the mouse. II. Eosinophil leukocyte levels in mice injected with egg-white and Freund's adjuvant.

In this article a study on the influence on bone-marrow eosinophilia in the mouse of a single injection of various concentrations of egg-white and incomplete Freund's adjuvant, together and separately, is reported. The combination of egg-white (1 per cent) and adjuvant gave a peak value of 158.3% eosinophil leukocytes on the 14th day after the injection; separately, neither one led to divergence from the results in untreated mice. The combination gave the greatest effect at 1.0 per cent and 0.1 per cent egg-white, a moderate effect with 10 per cent and 0.01 per cent, and negligible effects with 0.001 per cent. The interpretation of the results is discussed, with special attention to the relationship with the atopy syndrome in man.