Cargando…

Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia

On the plateau of eastern Zambia, trypanosomosis is endemic. Glossina morsitans morsitans Westwood (Diptera: Glossinidae), the only tsetse species present, is almost entirely dependent on livestock as its source of food with cattle being the most preferred host. To determine if tsetse challenge is d...

Descripción completa

Detalles Bibliográficos
Autores principales: Simukoko, H., Marcotty, T., Phiri, I., Vercruysse, J., Van den Bossche, P.
Formato: Texto
Lenguaje:English
Publicado: Elsevier 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2771271/
https://www.ncbi.nlm.nih.gov/pubmed/17618594
http://dx.doi.org/10.1016/j.actatropica.2007.05.011
_version_ 1782173743383052288
author Simukoko, H.
Marcotty, T.
Phiri, I.
Vercruysse, J.
Van den Bossche, P.
author_facet Simukoko, H.
Marcotty, T.
Phiri, I.
Vercruysse, J.
Van den Bossche, P.
author_sort Simukoko, H.
collection PubMed
description On the plateau of eastern Zambia, trypanosomosis is endemic. Glossina morsitans morsitans Westwood (Diptera: Glossinidae), the only tsetse species present, is almost entirely dependent on livestock as its source of food with cattle being the most preferred host. To determine if tsetse challenge is distributed equally over the various age categories and sexes within a cattle herd, a longitudinal study of trypanosomosis incidence was conducted during the rainy season. A total of 354 head of cattle consisting of 40% oxen, 30% cows, 15% young stock, 13% calves and 2% bulls were sampled for three consecutive months and their infection statuses determined using the PCR–RFLP technique as diagnostic method. Results indicated that there were significant differences (P < 0.001) in the proportion of infected animals between the various categories. In oxen, the risk of infection was 5.6 times higher than in calves. Those results suggest heterogeneity in the challenge by tsetse flies and are in line with entomological observations on the feeding preference of tsetse on cattle. The implications of these results for the control of trypanosomosis in Eastern Province and other epidemiologically related areas are discussed.
format Text
id pubmed-2771271
institution National Center for Biotechnology Information
language English
publishDate 2007
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-27712712009-11-09 Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia Simukoko, H. Marcotty, T. Phiri, I. Vercruysse, J. Van den Bossche, P. Acta Trop Article On the plateau of eastern Zambia, trypanosomosis is endemic. Glossina morsitans morsitans Westwood (Diptera: Glossinidae), the only tsetse species present, is almost entirely dependent on livestock as its source of food with cattle being the most preferred host. To determine if tsetse challenge is distributed equally over the various age categories and sexes within a cattle herd, a longitudinal study of trypanosomosis incidence was conducted during the rainy season. A total of 354 head of cattle consisting of 40% oxen, 30% cows, 15% young stock, 13% calves and 2% bulls were sampled for three consecutive months and their infection statuses determined using the PCR–RFLP technique as diagnostic method. Results indicated that there were significant differences (P < 0.001) in the proportion of infected animals between the various categories. In oxen, the risk of infection was 5.6 times higher than in calves. Those results suggest heterogeneity in the challenge by tsetse flies and are in line with entomological observations on the feeding preference of tsetse on cattle. The implications of these results for the control of trypanosomosis in Eastern Province and other epidemiologically related areas are discussed. Elsevier 2007-08 /pmc/articles/PMC2771271/ /pubmed/17618594 http://dx.doi.org/10.1016/j.actatropica.2007.05.011 Text en © 2007 Elsevier B.V. https://creativecommons.org/licenses/by/3.0/ Open Access under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/) license
spellingShingle Article
Simukoko, H.
Marcotty, T.
Phiri, I.
Vercruysse, J.
Van den Bossche, P.
Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia
title Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia
title_full Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia
title_fullStr Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia
title_full_unstemmed Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia
title_short Heterogeneity in the trypanosomosis incidence in Zebu cattle of different ages and sex on the plateau of eastern Zambia
title_sort heterogeneity in the trypanosomosis incidence in zebu cattle of different ages and sex on the plateau of eastern zambia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2771271/
https://www.ncbi.nlm.nih.gov/pubmed/17618594
http://dx.doi.org/10.1016/j.actatropica.2007.05.011
work_keys_str_mv AT simukokoh heterogeneityinthetrypanosomosisincidenceinzebucattleofdifferentagesandsexontheplateauofeasternzambia
AT marcottyt heterogeneityinthetrypanosomosisincidenceinzebucattleofdifferentagesandsexontheplateauofeasternzambia
AT phirii heterogeneityinthetrypanosomosisincidenceinzebucattleofdifferentagesandsexontheplateauofeasternzambia
AT vercruyssej heterogeneityinthetrypanosomosisincidenceinzebucattleofdifferentagesandsexontheplateauofeasternzambia
AT vandenbosschep heterogeneityinthetrypanosomosisincidenceinzebucattleofdifferentagesandsexontheplateauofeasternzambia