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The transmission of Spirochaeta duttoni

Published online by Cambridge University Press:  06 April 2009

Edward Hindle
Edward Hindle
Affiliation:
(From the Quick Laboratory, University of Cambridge.)
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Extract

(1) About 30% of the O. moubata from Uganda have been found to be immune to infection with S. duttoni.

(2) When infected ticks are kept at ordinary temperatures (about 21°C). the following parts of the body are found to harbour the infection :—gut + contents, sexual organs, Malpighian tubules, excrement.

The following parts were found to be uninfective:—salivary glands, coxal fluid.

(3) When infected ticks are kept at a temperature of about 35°C. for two or three days previous to dissection, all the organs of the body, including the salivary glands, are found to be infective. Moreover the incubation periods that elapse before the appearance of spirochaetes in the injected mice are shorter than in the case of the corresponding experiments with ticks that had not been kept at a high temperature.

(4) No spirochaetes have been detected in any of the organs of infected ticks that had been kept at a temperature of about 21°C. When a tick ingests blood containing spirochaetes, the latter persist in the lumen of the gut for periods varying from a few days up to as long as four weeks; usually, however, they disappear from the gut in the course of nine or ten days.

(5) When infected ticks are heated to a temperature of 35°C. for two or three days, spirochaetes reappear in the lumen of the gut, and also appear in all the organs of the tick, and in the coelomic fluid.

(6) The spirochaetal infection that may follow the bite of an infected O. moubata results from the entrance of the infective material, excreted by the tick whilst feeding, into the open wound caused by the tick's bite. It is not the result of the inoculation of infective material from the salivary glands.

Type
Research Article
Information
Parasitology , Volume 4 , Issue 2 , June 1911 , pp. 133 - 149
Copyright
Copyright © Cambridge University Press 1911

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References

REFERENCES

Breinl, A., Kinghorn, A. and Todd, J. L. (1906). Attempts to transmit spirochaetes by the bites of Cimex lectularius. Liverpool Sch. Trop. Med., Memoir 21, pp. 113–118.Google Scholar
Brumpt, E. (1908 a). Existence de la “Fièvre des Tiques” en Abyssinie, etc. Bull. Soc. Path. exot., vol. i, pp. 432–436.Google Scholar
Brumpt, E. (1908 b). Transmission du Spirochaeta duttoni par l'Ornithodorus Savignyi. Transmission du S. duttoni et du S. gallinarum par l'Ornithodorus moubata, etc. Bull. Soc. Path, exot., vol. i, pp. 578–581.Google Scholar
Doreau, P. (1908). Fièvre spirillaire en Abyssinie. Bull. Soc. Path, exot., vol. i, pp. 480–484.Google Scholar
Dutton, J. E. and Todd, J. L. (1905). The Nature of Human Tick Fever in the Eastern Part of the Congo Free State. Liverpool Sch. Trop. Med., Memoir 17.Google Scholar
Fülleborn, et Mayer, (1907). Versuche, Trypanosomen und Spirochaeten durch Stegomyia fasciata zu übertragen. Arch. f. Schiffs- u. Tropen-Hyg., vol. xi, p. 535.Google Scholar
Koch, R. (1905). Vorläufige Mitteilungen über die Ergebnisse einer Forschungs-reise nach Ostafrika. Deutsche med. Wochenschr., 1905, p. 1866.Google Scholar
Leishman, W. B. (1909). Preliminary note on experiments in connection with the Transmission of Tick Fever. Journ. R. A. Med. Corps, vol. xii, pp. 123–135.Google Scholar
Leishman, W. B. (1910). An address on the Mechanism of Infection in “Tick Fever” and on the Hereditary Transmission of Spirochaeta duttoni in the Tick. Lancet, vol. clxxviii, pp. 11–14.CrossRefGoogle Scholar
Livingstone, (1857). Missionary Travels and Researches in South Africa. John Murray, London, pp. 628–629.Google Scholar
Manteufel, (1909). Weitere Untersuchungen über Rückfallfieber. Arb. a. d. Kais. Gesundheitsamte, vol. xxix, pp. 337–354.Google Scholar
Möllers, B. (1907). Experimentelle Studien über die Uebertragung des Rückfall- fiebers durch Zecken. Zeitschr. f. Hyg. u. Infections-Krankh., vol. lviii, pp. 277–285.Google Scholar
Neumann, R. O. (1909). Ueber das Verhalten der Spirochäten des Rückfallfiebers im Tierkörper und die experimentelle Uebertragung der Parasiten durch Zecken und Läuse. (Naturhist.-med. Ver., Heidelberg.) München. med. Wochenschr., vol. lvi, p. 477.Google Scholar
Nuttall, G. H. F. (1907). Note on the behaviour of Spirochaetae in Acanthia lectularia. Parasitology, vol. i, pp. 143–151.Google Scholar
Schuberg, and Manteufel, (1910). Ueber erworbene Immunität gegen Rekurrens bei Ornithodortts moubata. Zeitschr. f. Immunitätsforschung, vol. iv, pp. 512–515.Google Scholar