Relação das variáveis meteorológicas (temperatura, umidade e precipitação) com casos de dengue no município de Lábrea-AM

Abstract

Dengue is the most significant urban arbovirus in the Americas and is caused by Aedes aegypti, the main vector of the disease, which is sensitive to climatic conditions (PAHO, 2023; RAHMAN et al., 2021). Temperature, relative humidity and precipitation are the climatic elements that favor the proliferation of the dengue vector. The objective of the study was to analyze the climatic aspects of Lábrea-AM and its influence on dengue cases. The data used in the survey all refer to the year 2020. The temperature and relative humidity data were collected by the INMET automatic station installed in the municipality of Lábrea (-7.26055555; -64.7886111; 61.91m). Precipitation data was extracted from the Global Precipitation Meansurement (GPM) while dengue cases were obtained from the DataSUS website. Multiple data correlation was performed, dividing the data into three seasonal periods: i) rainy season 1 (January-April), ii) dry season (May-August) and iii) rainy season 2 (September-December). The results showed that there is seasonality in dengue cases, with peaks in the months of May and December due to climatic conditions conducive to the propagation, with high levels of humidity, precipitation and ideal temperature. Thus, through the multiple correlation of the data, it was found that the meteorological variables had an influence on dengue cases in the three seasonal periods. The mean temperature was linearly negative, indicating that dengue cases increased as temperature decreased. Relative humidity and precipitation were linearly positive, dengue cases increased as both increased.