Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-22T19:35:30.075Z Has data issue: false hasContentIssue false

Trypanosome infection rate in the tsetse species, Glossina pallidipes Austen, in a rural situation in Kenya

Published online by Cambridge University Press:  19 September 2011

Mary L. A. Owaga
Affiliation:
International Centre of Insect Physiology and Ecology (ICIPE), P.O. Box 30772, Nairobi, Kenya
Get access

Abstract

A study was carried out during the wet and dry seasons, between October 1978 and May 1980 (altogether comprising four wet and three dry seasons), on the trypanosome infection rate in the tsetse species, Glossina pallidipes Austen, in rural situations in the Kiboko and Nkruman areas in Kenya. There were some sex and age differences with respect to trypanosome infection. Female tsetse showed higher infection rates, and old flies, both male and female, also showed relatively higher trypanosome infection rates. Infections with Trypanosoma vivax and T. congolense were different, both as regards to seasons and locality: the infection rate with the latter was higher in Kiboko than in Nkruman, and varied seasonally; while the infection rate with T. vivax did not vary significantly with seasons. The kind of traps used for sampling tsetse influenced the trypanosome infection rate indirectly by having a direct influence on the age structure of tsetse. The vertebrate hosts of tsetse in the two areas played an important role: the infection rates of tsetse with T. vivax and T. congolense were high in areas with a high density of bovids.

Type
Research Article
Copyright
Copyright © ICIPE 1981

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. (1965) Amélioration de la méthode de détermination de l'âge physiologique de Clossines: études faites sur G. palipalis gambiensis Vanderplank 1949. Bull. Soc. Path. exot. 58, 250259.Google Scholar
Challier, A., Eyraud, M., Lafaye, A. and LaveissièRe, C. (1977) Amélioration due rendement du piege biconique d'un cône inferieur bleu. Cah. ORSTOM Ser. ent. Med. Parasit. 15, 283286.Google Scholar
Challier, A. and Laveissière, C. (1973) Un nouveau piege pur la capture des glossines (Glossina: Diptera, Muscidae): description et essais sur le terrain. Cah. ORSTOM Ser. ent. Med. Parasit. 2, 251262.Google Scholar
Geigy, R. and Kauffman, M. (1973) Examinations of large mammals for trypanosomes. Acta Trov. 30. 1223.Google ScholarPubMed
Geigy, R., Kauffman, M. K. and Diehl, P. (1968) On trypanosome infection rate in Glossina morsitans in the Ulanga District (Tanzania). Acta Trop. 25, 7177.Google ScholarPubMed
Harley, J. M. B. (1965) Seasonal and diurnal variations in physiological age and trypanosome infection rate of females of Glossina pallidipes Aust, G. palpalis fuscipes Newst. and G. brevipalplis Newst. Bull. ent. Res. 56, 595614.CrossRefGoogle Scholar
Harley, J. M. B. (1967) The influence of sampling method on the trypanosome infection rates of catches of G. pallidipes and G. fuscipes. Entomoloyia exp. appl. 10, 240252.CrossRefGoogle Scholar
Jackson, C. H. D. (1950) Wet season fraying of wings of tsetse flies Glossina morsitans. Bull. ent. Res. 41, 159160.CrossRefGoogle Scholar
Moloo, S. K., Steiger, R. F., Brun, R. and Boreham, P. F. L. (1971) Sleeping sickness survey in Musoma District, Tanzania. II. The role of Glossina in the transmission of sleeping sickness. Acta Trop. 28, 189205.Google ScholarPubMed
Owaga, M. L. A. (1980) Relative efficiency of some mechanical traps used in the study of the tsetse species Glossina pallidipes Austen. Insect Sci. Appl. 1, 197201.Google Scholar
Rogers, D. and Boreham, P. F. L. (1973) Sleeping sickness survey in the Serengeti area, Tanzania, in 1971. The vector role of Glossina swynnertoni Austen. Acta Trop. 30, 2435.Google ScholarPubMed
Saunders, D. S. (1962) Age determination for female tsetse flies and the age composition of samples of G. pallidipes. G. palpalis fuscipes and G. brevipalpis. Bull. ent. Res. 53, 597.CrossRefGoogle Scholar
Squire, F. A. (1951) Seasonal variation in the incidence of Trypanosoma vivax in Glossina palpalis (R-D). Bull. ent. Res. 42, 371374.CrossRefGoogle Scholar