Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach.
Background Riverine tsetse (Glossina spp.) transmit Trypanosoma brucei gambiense which causes Gambian Human African Trypanosomiasis. Tiny Targets were developed for cost-effective riverine tsetse control, and comprise panels of insecticide-treated blue polyester fabric and black net that attract and...
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ftdoajarticles:oai:doaj.org/article:9072ba35ea3940d9b845d0c2aa510144 2023-05-15T15:16:19+02:00 Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. Roger D Santer Michael N Okal Johan Esterhuizen Steve J Torr 2021-06-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0009463 https://doaj.org/article/9072ba35ea3940d9b845d0c2aa510144 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pntd.0009463 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0009463 https://doaj.org/article/9072ba35ea3940d9b845d0c2aa510144 PLoS Neglected Tropical Diseases, Vol 15, Iss 6, p e0009463 (2021) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2021 ftdoajarticles https://doi.org/10.1371/journal.pntd.0009463 2022-12-31T11:11:01Z Background Riverine tsetse (Glossina spp.) transmit Trypanosoma brucei gambiense which causes Gambian Human African Trypanosomiasis. Tiny Targets were developed for cost-effective riverine tsetse control, and comprise panels of insecticide-treated blue polyester fabric and black net that attract and kill tsetse. Versus typical blue polyesters, two putatively more attractive fabrics have been developed: Vestergaard ZeroFly blue, and violet. Violet was most attractive to savannah tsetse using large targets, but neither fabric has been tested for riverine tsetse using Tiny Targets. Methods We measured numbers of G. f. fuscipes attracted to electrified Tiny Targets in Kenya and Uganda. We compared violets, Vestergaard blues, and a typical blue polyester, using three replicated Latin squares experiments. We then employed Bayesian statistical analyses to generate expected catches for future target deployments incorporating uncertainty in model parameters, and prior knowledge from previous experiments. Results Expected catches for average future replicates of violet and Vestergaard blue targets were highly likely to exceed those for typical blue. Accounting for catch variability between replicates, it remained moderately probable (70-86% and 59-84%, respectively) that a given replicate of these targets would have a higher expected catch than typical blue on the same day at the same site. Meanwhile, expected catches for average violet replicates were, in general, moderately likely to exceed those for Vestergaard blue. However, the difference in medians was small, and accounting for catch variability, the probability that the expected catch for a violet replicate would exceed a Vestergaard blue equivalent was marginal (46-71%). Conclusion Violet and Vestergaard ZeroFly blue are expected to outperform typical blue polyester in the Tiny Target configuration. Violet is unlikely to greatly outperform Vestergaard blue deployed in this way, but because violet is highly attractive to both riverine and savannah tsetse using ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLOS Neglected Tropical Diseases 15 6 e0009463 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
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English |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
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Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Roger D Santer Michael N Okal Johan Esterhuizen Steve J Torr Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
Background Riverine tsetse (Glossina spp.) transmit Trypanosoma brucei gambiense which causes Gambian Human African Trypanosomiasis. Tiny Targets were developed for cost-effective riverine tsetse control, and comprise panels of insecticide-treated blue polyester fabric and black net that attract and kill tsetse. Versus typical blue polyesters, two putatively more attractive fabrics have been developed: Vestergaard ZeroFly blue, and violet. Violet was most attractive to savannah tsetse using large targets, but neither fabric has been tested for riverine tsetse using Tiny Targets. Methods We measured numbers of G. f. fuscipes attracted to electrified Tiny Targets in Kenya and Uganda. We compared violets, Vestergaard blues, and a typical blue polyester, using three replicated Latin squares experiments. We then employed Bayesian statistical analyses to generate expected catches for future target deployments incorporating uncertainty in model parameters, and prior knowledge from previous experiments. Results Expected catches for average future replicates of violet and Vestergaard blue targets were highly likely to exceed those for typical blue. Accounting for catch variability between replicates, it remained moderately probable (70-86% and 59-84%, respectively) that a given replicate of these targets would have a higher expected catch than typical blue on the same day at the same site. Meanwhile, expected catches for average violet replicates were, in general, moderately likely to exceed those for Vestergaard blue. However, the difference in medians was small, and accounting for catch variability, the probability that the expected catch for a violet replicate would exceed a Vestergaard blue equivalent was marginal (46-71%). Conclusion Violet and Vestergaard ZeroFly blue are expected to outperform typical blue polyester in the Tiny Target configuration. Violet is unlikely to greatly outperform Vestergaard blue deployed in this way, but because violet is highly attractive to both riverine and savannah tsetse using ... |
format |
Article in Journal/Newspaper |
author |
Roger D Santer Michael N Okal Johan Esterhuizen Steve J Torr |
author_facet |
Roger D Santer Michael N Okal Johan Esterhuizen Steve J Torr |
author_sort |
Roger D Santer |
title |
Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. |
title_short |
Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. |
title_full |
Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. |
title_fullStr |
Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. |
title_full_unstemmed |
Evaluation of improved coloured targets to control riverine tsetse in East Africa: A Bayesian approach. |
title_sort |
evaluation of improved coloured targets to control riverine tsetse in east africa: a bayesian approach. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2021 |
url |
https://doi.org/10.1371/journal.pntd.0009463 https://doaj.org/article/9072ba35ea3940d9b845d0c2aa510144 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 15, Iss 6, p e0009463 (2021) |
op_relation |
https://doi.org/10.1371/journal.pntd.0009463 https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0009463 https://doaj.org/article/9072ba35ea3940d9b845d0c2aa510144 |
op_doi |
https://doi.org/10.1371/journal.pntd.0009463 |
container_title |
PLOS Neglected Tropical Diseases |
container_volume |
15 |
container_issue |
6 |
container_start_page |
e0009463 |
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