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Chapter 53 : Cecil Hoare's Eponymous Organism
The chapter on Cecil Hoare's eponymous Organism focuses on the research works of Cecil Hoare's on protozoa. One of the earliest projects of Hoare dealt with the flagellates that live inside another parasite, the sheep ked. Hoare identified the organism concerned, Trypanosoma melophagium, and demonstrated its life cycle and transmission by the ked. Between 1927 and 1929, Hoare worked in Entebbe, Uganda, where he discovered the life cycle of another crocodile parasite, Trypanosoma grayi. The developmental stages of this organism in the tsetse fly were already known, but it was Hoare who demonstrated their relationship to crocodile trypanosomes. During the 1930s, he pioneered important work on pathogenic trypanosomes of pigs, cattle, and monkeys. He concluded that Entamoeba histolytica was represented by two distinct races, one a cosmopolitan commensal and the other a potential pathogen, usually restricted to hot countries. This hypothesis, now widely accepted, implies that symptomless infections with the organism in temperate regions need not be treated.