Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania.
There is an increasing need to evaluate the impact of chemotherapeutic and vector-based interventions as onchocerciasis affected countries work towards eliminating the disease. The Esperanza Window Trap (EWT) provides a possible alternative to human landing collections (HLCs) for the collection of a...
Published in: | PLOS Neglected Tropical Diseases |
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Language: | English |
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2017
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Online Access: | https://doi.org/10.1371/journal.pntd.0005688 https://doaj.org/article/51568367d3ca4c04a1e0d2c61246ec71 |
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ftdoajarticles:oai:doaj.org/article:51568367d3ca4c04a1e0d2c61246ec71 2023-05-15T15:15:37+02:00 Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. Adam Hendy Vincent Sluydts Taylor Tushar Jacobus De Witte Patrick Odonga Denis Loum Michael Nyaraga Thomson Lakwo Jean-Claude Dujardin Rory Post Akili Kalinga Richard Echodu 2017-06-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0005688 https://doaj.org/article/51568367d3ca4c04a1e0d2c61246ec71 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5491316?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0005688 https://doaj.org/article/51568367d3ca4c04a1e0d2c61246ec71 PLoS Neglected Tropical Diseases, Vol 11, Iss 6, p e0005688 (2017) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2017 ftdoajarticles https://doi.org/10.1371/journal.pntd.0005688 2022-12-31T03:22:24Z There is an increasing need to evaluate the impact of chemotherapeutic and vector-based interventions as onchocerciasis affected countries work towards eliminating the disease. The Esperanza Window Trap (EWT) provides a possible alternative to human landing collections (HLCs) for the collection of anthropophilic blackflies, yet it is not known whether current designs will prove effective for onchocerciasis vectors throughout sub-Saharan Africa. EWTs were deployed for 41 days in northern Uganda and south eastern Tanzania where different Simulium damnosum sibling species are responsible for disease transmission. The relative efficacy of EWTs and HLCs was compared, and responses of host-seeking blackflies to odour baits, colours, and yeast-produced CO2 were investigated. Blue EWTs baited with CO2 and worn socks collected 42.3% (2,393) of the total S. damnosum s.l. catch in northern Uganda. Numbers were comparable with those collected by HLCs (32.1%, 1,817), and higher than those collected on traps baited with CO2 and BG-Lure (25.6%, 1,446), a synthetic human attractant. Traps performed less well for the collection of S. damnosum s.l. in Tanzania where HLCs (72.5%, 2,432) consistently outperformed both blue (16.8%, 563) and black (10.7%, 360) traps baited with CO2 and worn socks. HLCs (72.3%, 361) also outperformed sock-baited (6.4%, 32) and BG-Lure-baited (21.2%, 106) traps for the collection of anthropophilic Simulium bovis in northern Uganda. Contrasting blackfly distributions were observed on traps in Uganda and Tanzania, indicating differences in behaviour in each area. The success of EWT collections of S. damnosum s.l. in northern Uganda was not replicated in Tanzania, or for the collection of anthropophilic S. bovis. Further research to improve the understanding of behavioural responses of vector sibling species to traps and their attractants should be encouraged. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Esperanza ENVELOPE(-56.983,-56.983,-63.400,-63.400) PLOS Neglected Tropical Diseases 11 6 e0005688 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
spellingShingle |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Adam Hendy Vincent Sluydts Taylor Tushar Jacobus De Witte Patrick Odonga Denis Loum Michael Nyaraga Thomson Lakwo Jean-Claude Dujardin Rory Post Akili Kalinga Richard Echodu Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
There is an increasing need to evaluate the impact of chemotherapeutic and vector-based interventions as onchocerciasis affected countries work towards eliminating the disease. The Esperanza Window Trap (EWT) provides a possible alternative to human landing collections (HLCs) for the collection of anthropophilic blackflies, yet it is not known whether current designs will prove effective for onchocerciasis vectors throughout sub-Saharan Africa. EWTs were deployed for 41 days in northern Uganda and south eastern Tanzania where different Simulium damnosum sibling species are responsible for disease transmission. The relative efficacy of EWTs and HLCs was compared, and responses of host-seeking blackflies to odour baits, colours, and yeast-produced CO2 were investigated. Blue EWTs baited with CO2 and worn socks collected 42.3% (2,393) of the total S. damnosum s.l. catch in northern Uganda. Numbers were comparable with those collected by HLCs (32.1%, 1,817), and higher than those collected on traps baited with CO2 and BG-Lure (25.6%, 1,446), a synthetic human attractant. Traps performed less well for the collection of S. damnosum s.l. in Tanzania where HLCs (72.5%, 2,432) consistently outperformed both blue (16.8%, 563) and black (10.7%, 360) traps baited with CO2 and worn socks. HLCs (72.3%, 361) also outperformed sock-baited (6.4%, 32) and BG-Lure-baited (21.2%, 106) traps for the collection of anthropophilic Simulium bovis in northern Uganda. Contrasting blackfly distributions were observed on traps in Uganda and Tanzania, indicating differences in behaviour in each area. The success of EWT collections of S. damnosum s.l. in northern Uganda was not replicated in Tanzania, or for the collection of anthropophilic S. bovis. Further research to improve the understanding of behavioural responses of vector sibling species to traps and their attractants should be encouraged. |
format |
Article in Journal/Newspaper |
author |
Adam Hendy Vincent Sluydts Taylor Tushar Jacobus De Witte Patrick Odonga Denis Loum Michael Nyaraga Thomson Lakwo Jean-Claude Dujardin Rory Post Akili Kalinga Richard Echodu |
author_facet |
Adam Hendy Vincent Sluydts Taylor Tushar Jacobus De Witte Patrick Odonga Denis Loum Michael Nyaraga Thomson Lakwo Jean-Claude Dujardin Rory Post Akili Kalinga Richard Echodu |
author_sort |
Adam Hendy |
title |
Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. |
title_short |
Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. |
title_full |
Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. |
title_fullStr |
Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. |
title_full_unstemmed |
Esperanza Window Traps for the collection of anthropophilic blackflies (Diptera: Simuliidae) in Uganda and Tanzania. |
title_sort |
esperanza window traps for the collection of anthropophilic blackflies (diptera: simuliidae) in uganda and tanzania. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2017 |
url |
https://doi.org/10.1371/journal.pntd.0005688 https://doaj.org/article/51568367d3ca4c04a1e0d2c61246ec71 |
long_lat |
ENVELOPE(-56.983,-56.983,-63.400,-63.400) |
geographic |
Arctic Esperanza |
geographic_facet |
Arctic Esperanza |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 11, Iss 6, p e0005688 (2017) |
op_relation |
http://europepmc.org/articles/PMC5491316?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0005688 https://doaj.org/article/51568367d3ca4c04a1e0d2c61246ec71 |
op_doi |
https://doi.org/10.1371/journal.pntd.0005688 |
container_title |
PLOS Neglected Tropical Diseases |
container_volume |
11 |
container_issue |
6 |
container_start_page |
e0005688 |
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1766345984140378112 |