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On the Seasonal Prevalence of Trypanosoma Lewisi in Mus rattus and in Mus deoumanus and its Relation to the Mechanism of Transmission of the Infection

Published online by Cambridge University Press:  06 April 2009

G. F. Petrie  and
C. R. Avari
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Extract

The above-mentioned considerations bearing upon the influence of insect prevalence and the influence of meteorological conditions on the prevalence of trypanosome infections in rats may be summarized as follows:

(1) There are definite seasonal variations in the prevalence of trypanosome infections in M. rattus and in M. decumanus.

(2) No definite correlation is forthcoming between the seasonal prevalence of T. lewisi and the seasonal prevalence of rat fleas. The seasonal prevalence of the transmitting insects is apparently a factor of subsidiary importance in the causation of the trypanosome prevalence.

(3) The evidence adduced above indicates that the dominant factor determining the seasonal prevalence of trypanosome infections is the atmospheric temperature, the optimum temperature approximating to 79° F. It is probable that temperature operates by influencing a developmental cycle of the trypanosomes in the transmitting insects.

(4) It is possible that in addition to temperature the atmospheric humidity may play a part by influencing the direct or mechanical transference of the infection.

Type
Research Article
Information
Parasitology , Volume 2 , Issue 3 , September 1909 , pp. 305 - 324
Copyright
Copyright © Cambridge University Press 1909

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References

REFERENCES

Bruce, David (1897). Further Report on the Tsetse Fly disease or Nagana in Zululand p. 8. London.Google Scholar
Bruce, David (1909). Communication to Koyal Society, London, dated 3rd April, Uganda, received on 30th April, read 6th May.Google Scholar
Carter, H. Vandyke (1888). On the lately demonstrated blood-contamination and infective disease of the rat and of equines in India. Scientific Memoirs by Medical Officers of the Army of India, Part III., 1887, p. 49. Calcutta.Google Scholar
Grassi, Ruge (1906) and others on the influence of temperature on sporogony of the malarial parasite and of the proteosoma of birds. See article “Die im Blute schmarotzenden Protozoen und ihre nächsten Verwandten,” pp. 246–248. by Lühe, and the article on Malaria, pp. 326, 327, Ziemann, in Mense's Handbuch der Tropenkrankheiten, Bd. iii. Leipzig, 1906.Google Scholar
Kanthack, A. A., Durham, H. E. and Blandford, W. F. H. (1899). On Nagana or Tsetse Fly disease. Proceedings Royal Soc. Lond., Vol. lxiv. p. 104.Google Scholar
Kleine, (1909). Positive Infektionsversuche mit Trypanosoma brucei durch Glossina palpalis. Deutsche med. Wochenschr., Vol. xxxv., 18th 03, pp.469, 470.Google Scholar
Kleine, (1909). Weitere wissenschaftliche Beobachtungen über die Entwicklung von Trypanosomen in Glossinen. Deutsche med. Wochenschr., Vol. xxxv. pp. 924, 925.Google Scholar
Laveran, A. and Mesnil, F. (1901). Recherches morphologiques et expérimentales sur le trypanosome des rats (Tr. lewisi Kent). Ann. de l'Instit. Past. Vol. xv. pp. 673, 713.Google Scholar
Lingard, A. (1895). Summary of Further Report on Surra. Bombay.Google Scholar
Musgrave, W. E. and Clegg, W. T. (1903). Trypanosomes and trypanosomiases. Bureau of Government Laboratories No. 5. Biological laboratory. Manila.Google Scholar
Nuttall, G. H. F. (1908). The transmission of Trypanosoma lewisi by fleas and lice. Parasitology, Vol. i. pp. 296–301.CrossRefGoogle Scholar
Prowazek, S. (1905). Studien über Säugetiertrypanosomen. Arbeit. a. d. Kaiserl. Gesundh., Vol. xxii. pp. 351–395, Plates I.–VI and 4 text figures.Google Scholar
Rabinowitsch, L. and Kempner, W. (1899). Beitrag zur Kenntniss der Blutparasiten, speciell der Rattentrypanosomen. Zeitschr. für Hygiene und Infektionskrankh., Bd. xxx. pp. 251–293, Plates II and III.CrossRefGoogle Scholar
Reports of Plague Investigations in India. Flea prevalence (1908). Journ. of Hygiene, Vol. viii. p. 297.Google Scholar
Leucocytozoon prevalence (1907). Journ. of Hygiene, Vol. vii. p. 911.Google Scholar
Swingle, L. D. (1907). Some studies on Trypanosoma lewisi. Trans. Amer. Microsc. Soc., Vol. xxvii. p. 111.CrossRefGoogle Scholar
Yakimoff, W. L. (1907). Ueber Trypanosoma lewisi und seiner Verbreitung in St. Petersburg. Zeitschr. für Infektionskrankh. der Haustiere t. ii. f. 4, 5, 12 p. Abstract by Mesnil in Bull. Inst. Past. (1907), Vol. v. p. 698.Google Scholar