Published online by Cambridge University Press: 18 November 2009
Trichinosis is a disease which is characterised by profound absolute and relative variations in the leucocyte ratios of the circulating blood, more particularly a marked eosinophilia, and in moderate cases, concurrent neutrophilia (van Someren, 1938). It is obvious that these changes in the peripheral blood are the outcome of disturbances in the development of the precursor cells of the haemopoietic system, especially in the bone marrow; the lymphocytogenic tissue in the spleen and lymph glands does not appear to be so markedly activated, except in very severe cases or late in the course of the disease.