Abstract
INTRODUCTION: The Chikungunya virus is transmitted by Aedes aegypti and Aedes albopictus, causing fever and joint pain, with potential serious complications. This study aimed to analyze the incidence and epidemiological profile of Chikungunya cases in Porto Nacional, Tocantins, between 2019 and 2023. METHODOLOGY: A quantitative approach was used, based on retrospective data found in the Notifiable Diseases Information System (SINAN). The variables tested included sex, age group, education and disease progression. The incidence calculation was carried out based on population estimates provided by IBGE. RESULTS: The results indicated a significant increase in cases in 2022, representing 58% of the total, followed by a drop in 2023. The majority of cases affected women (65%) and people between 20 and 39 years old. Laboratory classification was the main diagnostic method, responsible for 60% of confirmed cases. DISCUSSION: The discussion of the results highlights the need for more effective public policies to control the spread of the virus, especially in vulnerable regions. FINAL CONSIDERATIONS: Therefore, although there was a reduction in cases in 2023, it is crucial to maintain continuous epidemiological surveillance and vector control actions to prevent future outbreaks and mitigate the impacts of Chikungunya on the population.
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