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Relações entre o clima e saúde: o caso da dengue no Rio Grande do Sul no período de 2007 a 2017
Abstract
The approach of the relation between the spatial-temporal variability of cases of dengue fever and climate variability (2007-2017) in the state of Rio Grande do Sul is in the heart of this paper. It begins with a brief characterization of the situation of Rio Grande do Sul in the context of the distribution of dengue in Brazil and defines the aspects of climate variability that can be considered, given the regionalized management of the health system in this state. After presenting the approach of the subject the aim is to present the methodology used to analyze the annual climatic types (AAC), the climatic variability and correlations with the variability of the disease between the years of 2007 and 2017. The secondary data used for the analysis were: the monthly values of temperature, precipitation and their climatological norm (1961-1990) for 16 meteorological stations (INMET) distributed within the state; confirmed cases of indigenous dengue fever for 19 regional health coordinations per year (SINAN Net-RS); monthly sea surface temperature anomalies according to Niño 3.4 (NOAA / CPC) and ENSO events by year. Based on the results of this analysis, the usual climatic typologies attributed to the temporal variability of annual climatic types (AAC) are put into question; we identify the annual climate types most related to the onset of dengue fever; Associations are found between monthly and annual anomalies with the annual occurrence of dengue fever seen in regional health data and the state as a whole. The most significant correspondence was between the occurrence of dengue fever and El Niño events.
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