An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa
An unpredicted outbreak of African animal trypanosomosis or nagana in 1990 in north-eastern KwaZulu-Natal necessitated an emergency control programme, utilising the extensive cattledipping system in the area, as well as a reassessment of the tsetse and trypanosomosis problem in the province. Since 1...
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| Format: | Article |
| Language: | English |
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AOSIS
2016-06-01
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| Series: | Onderstepoort Journal of Veterinary Research |
| Subjects: | |
| Online Access: | https://ojvr.org/index.php/ojvr/article/view/1172 |
| _version_ | 1818414401116438528 |
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| author | Chantel J. de Beer Gert J. Venter Karin Kappmeier Green Johan Esterhuizen Daniel G. de Klerk Jerome Ntshangase Marc J.B. Vreysen Ronel Pienaar Makhosazana Motloang Lundi Ntantiso Abdalla A. Latif |
| author_facet | Chantel J. de Beer Gert J. Venter Karin Kappmeier Green Johan Esterhuizen Daniel G. de Klerk Jerome Ntshangase Marc J.B. Vreysen Ronel Pienaar Makhosazana Motloang Lundi Ntantiso Abdalla A. Latif |
| author_sort | Chantel J. de Beer |
| collection | DOAJ |
| description | An unpredicted outbreak of African animal trypanosomosis or nagana in 1990 in north-eastern KwaZulu-Natal necessitated an emergency control programme, utilising the extensive cattledipping system in the area, as well as a reassessment of the tsetse and trypanosomosis problem in the province. Since 1990, sporadic blood sampling of cattle at the dip tanks in the naganainfested areas were undertaken to identify trypanosome species involved and to determine the infection prevalence in cattle. The distribution and species composition of the tsetse populations in the area were also investigated. From November 2005 to November 2007 selected dip tanks were surveyed for trypanosome infection prevalence. During April 2005 to August 2009 the distribution and abundance of tsetse populations were assessed with odour-baited H traps. The tsetse and trypanosome distribution maps were updated and potential correlations between tsetse apparent densities (ADs) and the prevalence of trypanosomosis were assessed. Glossina brevipalpis Newstead and Glossina austeni Newstead were recorded in locations where they have not previously been collected. No significant correlation between tsetse relative abundance and nagana prevalence was found, which indicated complex interactions between tsetse fly presence and disease prevalence. This was epitomised by data that indicated that despite large differences in the ADs of G. austeni and G. brevipalpis, trypanosome infection prevalence was similar in all three districts in the area. This study clearly indicated that both tsetse species play significant roles in trypanosome transmission and that it will be essential that any control strategy, which aims at sustainable management of the disease, should target both species.
Keywords: Tsetse distribution; Glossina brevipalpis; Glossina austeni; trypanosome infection prevalence |
| first_indexed | 2024-12-14T11:18:30Z |
| format | Article |
| id | doaj.art-0fada4d763a84083b2f1479509a7a7b8 |
| institution | Directory Open Access Journal |
| issn | 0030-2465 2219-0635 |
| language | English |
| last_indexed | 2024-12-14T11:18:30Z |
| publishDate | 2016-06-01 |
| publisher | AOSIS |
| record_format | Article |
| series | Onderstepoort Journal of Veterinary Research |
| spelling | doaj.art-0fada4d763a84083b2f1479509a7a7b82022-12-21T23:03:51ZengAOSISOnderstepoort Journal of Veterinary Research0030-24652219-06352016-06-01831e1e1010.4102/ojvr.v83i1.1172527An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South AfricaChantel J. de Beer0Gert J. Venter1Karin Kappmeier Green2Johan Esterhuizen3Daniel G. de Klerk4Jerome Ntshangase5Marc J.B. Vreysen6Ronel Pienaar7Makhosazana Motloang8Lundi Ntantiso9Abdalla A. Latif10Agricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne Diseases; Department of Zoology and Entomology, University of the Free StateAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne Diseases; Department of Veterinary and Tropical Diseases, University of PretoriaAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne DiseasesAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne Diseases, South Africa; Department of Vector Biology, Liverpool School of Tropical Medicine, United KingdomAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne DiseasesAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne DiseasesJoint Food and Agriculture Organization/International Atomic Energy Agency Division of Nuclear Techniques in Food and Agriculture, Insect Pest Control LaboratoryAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne DiseasesAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne DiseasesMakhathini Research Station, JoziniAgricultural Research Council – Onderstepoort Veterinary Institute, Parasites, Vectors & Vector-borne Diseases; College of Agriculture, Engineering and Science, University of KwaZulu-NatalAn unpredicted outbreak of African animal trypanosomosis or nagana in 1990 in north-eastern KwaZulu-Natal necessitated an emergency control programme, utilising the extensive cattledipping system in the area, as well as a reassessment of the tsetse and trypanosomosis problem in the province. Since 1990, sporadic blood sampling of cattle at the dip tanks in the naganainfested areas were undertaken to identify trypanosome species involved and to determine the infection prevalence in cattle. The distribution and species composition of the tsetse populations in the area were also investigated. From November 2005 to November 2007 selected dip tanks were surveyed for trypanosome infection prevalence. During April 2005 to August 2009 the distribution and abundance of tsetse populations were assessed with odour-baited H traps. The tsetse and trypanosome distribution maps were updated and potential correlations between tsetse apparent densities (ADs) and the prevalence of trypanosomosis were assessed. Glossina brevipalpis Newstead and Glossina austeni Newstead were recorded in locations where they have not previously been collected. No significant correlation between tsetse relative abundance and nagana prevalence was found, which indicated complex interactions between tsetse fly presence and disease prevalence. This was epitomised by data that indicated that despite large differences in the ADs of G. austeni and G. brevipalpis, trypanosome infection prevalence was similar in all three districts in the area. This study clearly indicated that both tsetse species play significant roles in trypanosome transmission and that it will be essential that any control strategy, which aims at sustainable management of the disease, should target both species. Keywords: Tsetse distribution; Glossina brevipalpis; Glossina austeni; trypanosome infection prevalencehttps://ojvr.org/index.php/ojvr/article/view/1172Tsetse distributionGlossina brevipalpisGlossina austenitrypanosome infection prevalence |
| spellingShingle | Chantel J. de Beer Gert J. Venter Karin Kappmeier Green Johan Esterhuizen Daniel G. de Klerk Jerome Ntshangase Marc J.B. Vreysen Ronel Pienaar Makhosazana Motloang Lundi Ntantiso Abdalla A. Latif An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa Onderstepoort Journal of Veterinary Research Tsetse distribution Glossina brevipalpis Glossina austeni trypanosome infection prevalence |
| title | An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa |
| title_full | An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa |
| title_fullStr | An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa |
| title_full_unstemmed | An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa |
| title_short | An update of the tsetse fly (Diptera: Glossinidae) distribution and African animal trypanosomosis prevalence in north-eastern KwaZulu-Natal, South Africa |
| title_sort | update of the tsetse fly diptera glossinidae distribution and african animal trypanosomosis prevalence in north eastern kwazulu natal south africa |
| topic | Tsetse distribution Glossina brevipalpis Glossina austeni trypanosome infection prevalence |
| url | https://ojvr.org/index.php/ojvr/article/view/1172 |
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