Sustained Reduction of the Dengue Vector Population Resulting from an Integrated Control Strategy Applied in Two Brazilian Cities
| Autor: | Rosângela Maria Rodrigues Barbosa, Cynthia Braga, Lêda Regis, José Constantino Silveira, Juliana C. Serafim. da Silva, Ridelane Veiga Acioli, Marilú Gomes Netto Monte da Silva, Wagner Hugo Bonat, Liliam César de Castro Medeiros, Wayner Vieira de Souza, Cândida M. Nogueira. Ribeiro, Marco Aurélio Benedetti Rodrigues, A.F. Furtado, Antônio Miguel Vieira Monteiro, Maria Alice Varjal de Melo-Santos, Paulo Justiniano Ribeiro, Marilia Sá Carvalho, Cláudia Maria Fontes de Oliveira |
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| Rok vydání: | 2013 |
| Předmět: |
Mosquito Control
Infectious Disease Control Epidemiology Science Population Aedes aegypti Biology Dengue virus medicine.disease_cause Population density Infectious Disease Epidemiology Dengue Fever Dengue fever Dengue Public health surveillance Aedes Environmental health medicine Animals Humans Public Health Surveillance Cities education Population Density education.field_of_study Multidisciplinary Population Biology Ecology Dengue Virus medicine.disease biology.organism_classification Mosquito control Infectious Diseases Epidemiological Monitoring Medicine Topography Medical Health Facilities Zoology Entomology Brazil Research Article Neglected Tropical Diseases |
| Zdroj: | PLoS ONE PLoS ONE, Vol 8, Iss 7, p e67682 (2013) |
| ISSN: | 1932-6203 |
| DOI: | 10.1371/journal.pone.0067682 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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