The distribution of bovine trypanosomosis in Zimbabwe and an evaluation of the value of an anti-trypanosomal antibody detection ELISA as a tool for monitoring the effectiveness of tsetse control operations

Tsetse have been cleared from large areas of Zimbabwe during the past 65 years. In most areas, they are prevented from re-invading cleared areas by barriers of odour-baited, insecticide-treated targets. A trypanosomosis survey was conducted to determine the effectiveness of such barriers against re-...

Full description

Saved in:
Bibliographic Details
Published in:Tropical animal health and production 2001-10, Vol.33 (5), p.391-405
Main Authors: Van den Bossche, P, Shumba, W, Njagu, C, Shereni, W
Format: Article
Language:English
Subjects:
Animals
Antibodies, Protozoan - blood
Cattle
Cross-Sectional Studies
Enzyme-Linked Immunosorbent Assay - methods
Enzyme-Linked Immunosorbent Assay - veterinary
Insect Control - standards
Insect Vectors
Insecticides
Polls & surveys
Population Surveillance
Prevalence
Sensitivity and Specificity
Seroepidemiologic Studies
Trypanocidal Agents - pharmacology
Trypanosoma - immunology
Trypanosomiasis, African - blood
Trypanosomiasis, African - epidemiology
Trypanosomiasis, African - immunology
Trypanosomiasis, Bovine - blood
Trypanosomiasis, Bovine - epidemiology
Trypanosomiasis, Bovine - immunology
Tsetse Flies
Zimbabwe - epidemiology
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Tsetse have been cleared from large areas of Zimbabwe during the past 65 years. In most areas, they are prevented from re-invading cleared areas by barriers of odour-baited, insecticide-treated targets. A trypanosomosis survey was conducted to determine the effectiveness of such barriers against re-invasion and to confirm the absence of tsetse in areas where they had previously been eradicated. Parasitological diagnostic methods and an anti-trypanosomal antibody detection enzyme-linked immunosorbent assay (antibody ELISA) were used. The prevalence of trypanosomal infections in the tsetse-cleared areas was generally low. However, the prevalence of anti-trypanosomal antibodies was unexpectedly high in some areas. This high proportion of cattle with antibodies could, in most cases, be explained by recent or historic information on the distribution and density of tsetse. The results from the survey demonstrated the value of anti-trypanosomal antibody detection as an additional sensitive tool for monitoring the effectiveness of tsetse control operations.
ISSN:0049-4747
1573-7438
DOI:10.1023/A:1010591722751