Estudo epidemiológico da dengue, zika e febre chikungunya no município de Augustinópolis, norte do Estado do Tocantins, Brasil.

Abstract

Arboviruses caused by Aedes aegypti such as Dengue, Zika and Fever Chikungunya become a threat to the well-being of individuais and the environment. Objectives: To investigate the epidemiological and environmental aspects of Dengue. Zika and Chikungunya fever in the Municipality of Augustinópolis, State of Tocantins, considering environmental aspects in a temporal cut Methods: The study was carried out in the town of Augustinópolis, in the northern State of Tocantins, Brazil. The population of this study was composed of all reported cases of Dengue, Zika and Fever Chikungunya, in the town between January 2007 and December 2016 available in the SINAN. Results: 960 cases of Dengue. 39 cases of Zika Virus and 7 cases of Chikungunya Fever were reported. Among the 960 reported cases of Dengue in the period from 2007 to 2016, the frequency of the number of cases was higher in the age group > 18 years (p <0.001) in areas from the partial sewage system. On the other hand. there is a greater frequency of individuais in the age group <18 years, when the sewer is completely absent (p <0.001). Arboviruses when associated revealed that the number of female notifications with Zika virus was significantly higher (82.1) than the number of female notifications for Dengue (59.6) (p = 0.03) with HRAug with a higher number of notifications for Dengue (18.4) and USF III for Zika (35.9) (p <0.001). The incidence rate for notifications of Dengue and Zika was higher in the rainy season. Conclusion: This study contributed to know the epidemiological behavior of Dengue, Zika and Fever Chikungunya in the last ten years. Therefore, strategies and measures of prevention and control should always be evaluated and modified, since both the the vector Aedes aegypti have high power of adaptation and proliferation according to the environmental and seasonal changes.