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Updated: Jul 19, 2026
15:25
Protocol for Dengue Infections in Mosquitoes (A. aegypti) and Infection Phenotype Determination
Published on: July 4, 2007
[Association between dengue incidence and climatic factors]
Andressa F Ribeiro1, Gisela R A M Marques, Júlio C Voltolini
1Superintendência de Controle de Endemias, São Paulo, Brasil. labpesqsr3@sucen.sp.gov.br
Revista De Saude Publica
|October 26, 2006
Summary
Dengue cases in Brazil increased significantly, particularly in urban areas, with a notable time lag between climate factors and case occurrence. This highlights the need for integrated urban planning and mosquito control strategies.
Area of Science:
- Epidemiology
- Environmental Health
- Vector-borne Diseases
Context:
- Dengue is a significant public health concern in tropical and subtropical regions.
- Urbanization and climate change are known factors influencing vector-borne disease transmission.
- São Sebastião, Southern Brazil, experienced dengue outbreaks between 2001 and 2002.
Purpose:
- To investigate the epidemiological characteristics of autochthonous dengue cases.
- To analyze the relationship between dengue incidence and climatic variables (rainfall, temperature).
- To assess the impact of urbanization and environmental factors on dengue transmission.
Summary:
- Autochthonous dengue cases in São Sebastião (2001-2002) predominantly affected females aged 20-39 in central urban areas.
- Larval density indexes indicated potential breeding sites in buildings and recipients.
- A time lag of 2-4 months was observed between climatic variables (rainfall, temperature) and increased dengue case numbers.
Impact:
- Findings underscore the critical role of abiotic factors and urbanization in dengue epidemiology.
- The study identifies specific time lags for climate-driven dengue outbreaks, crucial for predictive modeling.
- Results emphasize the need for improved sanitation infrastructure and targeted vector control in vulnerable urban and tourist areas to mitigate dengue spread.
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