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Protocol for Dengue Infections in Mosquitoes (A. aegypti) and Infection Phenotype Determination
Published on: July 4, 2007
Determination of priority areas for dengue control actions
Ana Paula da Costa Resendes1, Nelson Artur Prado Rodrigues da Silveira, Paulo Chagastelles Sabroza
1Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil. aninha@ensp.fi ocruz.br
Revista De Saude Publica
|March 27, 2010
Summary
Cluster analysis identified high-risk dengue transmission areas in Niterói, Brazil. Findings highlight the need for improved dengue control and surveillance in areas with poor sanitation and high population growth.
Area of Science:
- Epidemiology
- Public Health
- Spatial Analysis
Background:
- Dengue poses a significant public health challenge globally.
- Identifying areas at high risk for dengue transmission is crucial for effective control.
Purpose of the Study:
- To identify areas at risk of dengue transmission using cluster analysis.
- To guide targeted dengue control and surveillance efforts.
Main Methods:
- Cluster analysis was performed on 48 districts in Niterói, Brazil.
- Districts were stratified into six groups based on sociodemographic factors using k-means clustering.
- Dengue incidence was calculated for each stratum across different time periods (1998-2006).
Main Results:
- Strata with poor sanitation and high population increases (2.1) and those with many shantytowns (3.1) showed the highest dengue incidence.
- Stratum 1.2, with better sanitation and income, exhibited the lowest incidence.
- High incidence rates in 2001-2002 indicated strong dengue virus transmission, even with presumed herd immunity.
Conclusions:
- Cluster analysis effectively identified priority areas for dengue control.
- Findings underscore the need for improved surveillance and structural interventions in vulnerable areas.
- Addressing living conditions and sanitation is key to mitigating dengue transmission.
