Impacts%20of%20Climate%20Change%20on%20Dengue%20Risk%20in%20Brazil

Working Papers

Impacts of Climate Change on Dengue Risk in Brazil


CODE: IDB-WP-511
AUTHOR(s): Alves, Denisard , de Menezes, Tatiane A. , Pereda, Paula C.
PUBLISHED: July 2014
LANGUAGE: English
RELATED TOPICS: Poverty Reduction and Labor
DOWNLOAD FILE IN: English

Abstract:

Climate-sensitive health problems kill millions every year and undermine the physical and psychological well-being of millions more. To identify the climate impacts on dengue risk in Brazil, a comparative case study is used based on the synthetic controls approach. The South and Northeast regions of Brazil are compared to the rest of the country in order to identify those impacts. The results suggest that dengue is more prevalent in warmer regions, but the humidity conditions and amount of rainfall seem fundamental for increase of the disease’s prevalence in temperate climate regions or drier tropical regions of the country. On the other hand, the increase in rainfall in the rainiest tropical areas could diminish the disease’s prevalence, as standing water accumulations might be washed away. Therefore, due to expected climate changes in the future, the dengue fever distribution in the country might change, with the disease migrating from the north to the south. Public policy’s role in minimizing these effects in the country should be focused on anticipating the proper climate conditions for dengue incidence by using integrated actions among local authorities.

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