Epidemiological profile of dengue before and during the Covid-19 pandemic in Mato Grosso
DOI:
https://doi.org/10.17058/reci.v15i4.20183Keywords:
Dengue Virus, Arboviruses, Aedes aegypti, Covid-19, Public Health SurveillanceAbstract
Background and Objectives: The magnitude and severity of dengue may have been impacted by the Covid-19 pandemic. This study aimed to compare the incidence rate and the sociodemographic and clinical profile of suspected dengue cases reported in Mato Grosso (MT), Brazil, in the three-year period before and during the pandemic (2017–2022). Methods: This was a case series study based on secondary data from notification forms in the Notifiable Diseases Information System (SINAN) in MT 2017-2022. Incidence rates were analyzed across the state’s 16 Health Regions, as well as sociodemographic and clinical characteristics. The chi-square test was used to compare the two trienniums, with a significance level of 5%. Results: A lower incidence rate was observed in the last triennium in the Baixada Cuiabana and Norte Araguaia regions, and a higher rate in the other regions during the pandemic triennium compared to the previous one — for instance, in Teles Pires, the rate increased from 806.5 to 7,161.7 cases per 100,000 inhabitants. In the 2020–2022 triennium, there was a higher proportion of cases among males, children aged 1 to 9 years, individuals of white race, those with higher education levels, and with laboratory confirmation. The proportion of cured cases was similar in both trienniums, and DENV-1 was the predominant serotype in both periods. Conclusion: The data indicate a higher cumulative incidence rate of dengue during the pandemic triennium compared to the previous period, with variations in sociodemographic and clinical profiles, which may have been influenced by the Covid-19 pandemic.
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