Excerpt from Blood Examination: And Its Value in Tropical Disease
Mr Fothergill has asked me to write a short preface for his useful little work. Every year the importance of blood examination in connection with disease is increasing; and this is especially the case with Tropical Diseases. In malaria, filariasis, kala-azar, sleeping sickness, relapsing fever, and tick fever, the detection of parasites gives at once a definite diagnosis and a sure guide to treatment. Various serum-reactions are not less valuable; and blood counts are frequently of great assistance.
With regard to the last named, caution must always be urged as regards the "error of random sampling" - the number of corpuscles examined must be sufficiently large.
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