Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities.
Aedes aegypti has developed evolution-driven adaptations for surviving in the domestic human habitat. Several trap models have been designed considering these strategies and tested for monitoring this efficient vector of Dengue. Here, we report a real-scale evaluation of a system for monitoring and...
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oai:doaj.org-article:973453d8ce7b4626b23807b56459895f2021-11-18T07:38:49ZSustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities.1932-620310.1371/journal.pone.0067682https://doaj.org/article/973453d8ce7b4626b23807b56459895f2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23844059/?tool=EBIhttps://doaj.org/toc/1932-6203Aedes aegypti has developed evolution-driven adaptations for surviving in the domestic human habitat. Several trap models have been designed considering these strategies and tested for monitoring this efficient vector of Dengue. Here, we report a real-scale evaluation of a system for monitoring and controlling mosquito populations based on egg sampling coupled with geographic information systems technology. The SMCP-Aedes, a system based on open technology and open data standards, was set up from March/2008 to October/2011 as a pilot trial in two sites of Pernambuco -Brazil: Ipojuca (10,000 residents) and Santa Cruz (83,000), in a joint effort of health authorities and staff, and a network of scientists providing scientific support. A widespread infestation by Aedes was found in both sites in 2008-2009, with 96.8%-100% trap positivity. Egg densities were markedly higher in SCC than in Ipojuca. A 90% decrease in egg density was recorded in SCC after two years of sustained control pressure imposed by suppression of >7,500,000 eggs and >3,200 adults, plus larval control by adding fishes to cisterns. In Ipojuca, 1.1 million mosquito eggs were suppressed and a 77% reduction in egg density was achieved. This study aimed at assessing the applicability of a system using GIS and spatial statistic analysis tools for quantitative assessment of mosquito populations. It also provided useful information on the requirements for reducing well-established mosquito populations. Results from two cities led us to conclude that the success in markedly reducing an Aedes population required the appropriate choice of control measures for sustained mass elimination guided by a user-friendly mosquito surveillance system. The system was able to support interventional decisions and to assess the program's success. Additionally, it created a stimulating environment for health staff and residents, which had a positive impact on their commitment to the dengue control program.Lêda N RegisRidelane Veiga AcioliJosé Constantino SilveiraMaria Alice Varjal Melo-SantosWayner Vieira SouzaCândida M Nogueira RibeiroJuliana C Serafim da SilvaAntonio Miguel Vieira MonteiroCláudia M F OliveiraRosângela M R BarbosaCynthia BragaMarco Aurélio Benedetti RodriguesMarilú Gomes N M SilvaPaulo Justiniano RibeiroWagner Hugo BonatLiliam César de Castro MedeirosMarilia Sa CarvalhoAndré Freire FurtadoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e67682 (2013) |
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Medicine R Science Q Lêda N Regis Ridelane Veiga Acioli José Constantino Silveira Maria Alice Varjal Melo-Santos Wayner Vieira Souza Cândida M Nogueira Ribeiro Juliana C Serafim da Silva Antonio Miguel Vieira Monteiro Cláudia M F Oliveira Rosângela M R Barbosa Cynthia Braga Marco Aurélio Benedetti Rodrigues Marilú Gomes N M Silva Paulo Justiniano Ribeiro Wagner Hugo Bonat Liliam César de Castro Medeiros Marilia Sa Carvalho André Freire Furtado Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities. |
| description |
Aedes aegypti has developed evolution-driven adaptations for surviving in the domestic human habitat. Several trap models have been designed considering these strategies and tested for monitoring this efficient vector of Dengue. Here, we report a real-scale evaluation of a system for monitoring and controlling mosquito populations based on egg sampling coupled with geographic information systems technology. The SMCP-Aedes, a system based on open technology and open data standards, was set up from March/2008 to October/2011 as a pilot trial in two sites of Pernambuco -Brazil: Ipojuca (10,000 residents) and Santa Cruz (83,000), in a joint effort of health authorities and staff, and a network of scientists providing scientific support. A widespread infestation by Aedes was found in both sites in 2008-2009, with 96.8%-100% trap positivity. Egg densities were markedly higher in SCC than in Ipojuca. A 90% decrease in egg density was recorded in SCC after two years of sustained control pressure imposed by suppression of >7,500,000 eggs and >3,200 adults, plus larval control by adding fishes to cisterns. In Ipojuca, 1.1 million mosquito eggs were suppressed and a 77% reduction in egg density was achieved. This study aimed at assessing the applicability of a system using GIS and spatial statistic analysis tools for quantitative assessment of mosquito populations. It also provided useful information on the requirements for reducing well-established mosquito populations. Results from two cities led us to conclude that the success in markedly reducing an Aedes population required the appropriate choice of control measures for sustained mass elimination guided by a user-friendly mosquito surveillance system. The system was able to support interventional decisions and to assess the program's success. Additionally, it created a stimulating environment for health staff and residents, which had a positive impact on their commitment to the dengue control program. |
| format |
article |
| author |
Lêda N Regis Ridelane Veiga Acioli José Constantino Silveira Maria Alice Varjal Melo-Santos Wayner Vieira Souza Cândida M Nogueira Ribeiro Juliana C Serafim da Silva Antonio Miguel Vieira Monteiro Cláudia M F Oliveira Rosângela M R Barbosa Cynthia Braga Marco Aurélio Benedetti Rodrigues Marilú Gomes N M Silva Paulo Justiniano Ribeiro Wagner Hugo Bonat Liliam César de Castro Medeiros Marilia Sa Carvalho André Freire Furtado |
| author_facet |
Lêda N Regis Ridelane Veiga Acioli José Constantino Silveira Maria Alice Varjal Melo-Santos Wayner Vieira Souza Cândida M Nogueira Ribeiro Juliana C Serafim da Silva Antonio Miguel Vieira Monteiro Cláudia M F Oliveira Rosângela M R Barbosa Cynthia Braga Marco Aurélio Benedetti Rodrigues Marilú Gomes N M Silva Paulo Justiniano Ribeiro Wagner Hugo Bonat Liliam César de Castro Medeiros Marilia Sa Carvalho André Freire Furtado |
| author_sort |
Lêda N Regis |
| title |
Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities. |
| title_short |
Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities. |
| title_full |
Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities. |
| title_fullStr |
Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities. |
| title_full_unstemmed |
Sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two Brazilian cities. |
| title_sort |
sustained reduction of the dengue vector population resulting from an integrated control strategy applied in two brazilian cities. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2013 |
| url |
https://doaj.org/article/973453d8ce7b4626b23807b56459895f |
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