John Lancelot Todd
| John Lancelot Todd | |
|---|---|
John Lancelot Todd in Congo in 1905
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| Born |
10 September 1876 Victoria, British Columbia, Canada |
| Died | 27 August 1949 (aged 72) Sainte-Anne-de-Bellevue, Quebec, Canada |
| Nationality | Canadian |
| Occupation | Physician |
| Known for | Parasitology |
John Lancelot Todd (10 September 1876 – 27 August 1949) was a Canadian physician and parasitologist.
John Lancelot Todd was born on 10 September 1876 in Victoria, British Columbia. He was of Anglo-Irish origins. His father was Jacob Hunter Todd, a prosperous businessman, and his mother was Rosanna Wigley, a teacher. He attended Upper Canada College, where one of his teachers was the author Stephen Leacock. In 1894 he was admitted to McGill University. He gained a B.A. in 1898 and a medical degree in 1900. He then spent some time in laboratory work, examining bacteriological and pathological specimens at the Royal Victoria Hospital.
In 1901 Todd was admitted to the Liverpool School of Tropical Medicine (LSTM). In 1902 he went on an LSTM expedition to The Gambia and Senegal, with Joseph Everett Dutton. The two men left on 21 August 1902. They established themselves at Cape St. Mary, near Bathurst, where they treated patients and conducted research, working long hours. Once they dissected a horse that had been killed by trypanosomiasis. They studied diseases related to trypanosoma, and investigated sanitation in the main population centers.
In 1903 Todd and Dutton accepted an invitation by King Leopold II of Belgium to research the connection between trypanosoma and sleeping sickness in the Congo Free State. The twelfth expedition of the Liverpool School of Tropical Medicine left for the Congo Free State on 13 September 1903. Dutton and Todd were accompanied Cuthbert Christy. Christy went back to England in June 1904, while Todd and Dutton went upstream to Stanley Falls, which they reached late in 1904. There they demonstrated what caused tick fever, and how it was transferred between humans and monkeys. Both Todd and Dutton caught the disease, but were well enough to continue traveling, and reached Kasongo on 9 February 1905. Dutton's health then declined quickly. He recorded his symptoms until too weak, after which Todd continued the record. Dutton died at Kasongo on 27 February 1905. Todd completed the program of study in respect for Dutton's memory. He left the Congo to return to England via Tanganyika in April 1905.
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