Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-23T07:27:33.840Z Has data issue: false hasContentIssue false
  • English
  • Français

Mixed trypanosome infection in wild Glossina pallidipes Aust.

Published online by Cambridge University Press:  19 September 2011

S. A. Tarimo ,
L. H. Otieno  and
P. Onyango
S. A. Tarimo
Affiliation:
International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
L. H. Otieno
Affiliation:
International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
P. Onyango
Affiliation:
International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
Get access

Abstract

Mixed T. congolense and T. brucei appeared in mice when proboscis from 3 field collected G. pallidipes were individually inoculated into mice. One of these flies had earlier been shown by dissection, to have T. congolense and the other two had T. brucei infection. A comparison of the growth rates of T. congolense and T. brucei in mice revealed that T. brucei always overshadowed T. congolense. These observations highlight the significance of multiple trypanosome infections in the epidemiology of African trypanosomiasis.

Résumé

Le mélange T. congolense et T. brucei apparaît dans les sourris lorsque les trompes des trois mouches G. pallidipes collectées dans le champ d'experimentation etaient inoculees individuellement dans les sourris. Une des mouches avaient précocement montré par dissection être porteus de T. congolense alors que les 2 autres présentaient une infection à T. brucei. Une étude comparative des taux de croissance de T. congolense et T. brucei dans les sourris rèvèle que T. brucei eclipse toujours T. congolense. Ces observations montrent clairement l'importance des infections multiples dans l'èpidémiologie de la trypanosomiase africaine.

Keywords

T. bruceiT. congolensegrowth ratesG. pallidipesT. bruceiT. congolense taux de croissanceG. pallidipes
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 8 , Issue 1 , February 1987 , pp. 25 - 27
Copyright
Copyright © ICIPE 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Challier, A., Eyraud, M., Lafaye, A. and Laveissiere, G. (1977) Amelioration du rendement du piege biconique pourglossines (Diptera, Glossinidae) par l'emploi dium cone lnferieur bleu. CAh. ORSTOM SER ent med. parasit 15, 283–286.Google Scholar
Lloyd, L. L. and Johnson, W. B. (1924) The trypanosome infection of tsetse flies in Northern Nigeria and a new method of estimation. Bull. ent. Res. 14, 265–288.CrossRefGoogle Scholar
Moloo, S. K. and Kutuza, S. B. (1974) Sleeping sickness survey in Musoma District, Tanzania. Further study on the vector role of Glossina. Trans. R. Soc, Trop. Med. Hyg. 68, 403–409.CrossRefGoogle Scholar
Moloo, S. K., Dar, F. and Kamunya, G. W. (1982) The transmission of mixed infections of pathogenic Trypanosoma species to susceptible hosts by Glossina morsitans morsitans. Acta trop. 39, 303–306.Google ScholarPubMed
Moloo, S. K., Steiger, R. F., Brun, R. and Boreham, P. F. L. (1971) Sleeping sickness survey of Musoma District, Tanzania, II.The role of Glossina in the transmission of sleeping sickness. Acta trop. 28, 189–205.Google ScholarPubMed
Mwambu, P. M. and Mayende, J. S. P. (1973) Salivarian trypanosome infections in cattle in Ikoma, South Mara District, Tanzania. Parasitology 66, 381–385.CrossRefGoogle ScholarPubMed
Otieno, L. H. (1978) The presence in the salivary secretions of G. morsitans of stages of T. (T.) brucei other than those occurring in the salivary glands. Trans. R. Soc. Trop.Med. Hyg. 72, 622–626.CrossRefGoogle Scholar
Otieno, L. H. (1983) Inadequacy of the dissection method for estimating trypanosome infection rates. Ann. trop. Med. Parasitol. 77 (3), 329–330.CrossRefGoogle ScholarPubMed
Otieno, L. H. and Darji, N. (1979) The abundance of pathogenic African trypanosome in the salivary secretions of wild Glossina pallidipes. Ann. trop. Med. Parasitol. 73, (6), 583–588.CrossRefGoogle ScholarPubMed
Ward, R. A. and Bell, L. H. (1971) Transmission of Trypanosoma brucei by colonized Glossina austeni and G. Morsitans. Trans. R. Soc. trop. Med. Hyg. 65, 236–237.CrossRefGoogle Scholar