Impact of COVID-19 on the epidemiology of respiratory viruses in southern Brazil
DOI:
https://doi.org/10.17058/reci.v14i2.18935Keywords:
Severe Acute Respiratory Syndrome, Epidemiological Monitoring, Coronavirus InfectionsAbstract
Background and objectives: During the SARS-CoV-2 pandemic, reduction in detection of other Respiratory Viruses (RV) was observed. Epidemiological studies are needed to understand the impact of the pandemic on the circulation of RV. The aim of this study is to analyze the epidemiological profile of cases of severe acute respiratory infection (SARI) associated with the main RV in hospitalized patients from RS, between 2010 and 2019 (period A) and between 2020 and 2021 (period B). Methods: Data related to SARI cases in RS were retrieved from SIVEP-Gripe. Results: In period A there were more infections with Influenza, Parainfluenza, Adenovirus and Respiratory Syncytial Virus, while in period B most cases were of SARS-CoV-2 infection. The most affected age groups were individuals <5 years old (67.1%) in period A, and >60 years old (50%) in period B. The main symptoms were fever and cough in period A, and dyspnea and O2saturation <95% in period B. The most reported comorbidities were lung diseases and chronic cardiovascular diseases in period A, and chronic cardiovascular diseases and diabetes mellitus in period B. Importantly, a higher fatality rate was observed in period B. Most cases occurred between May and July in period A, and in November and December 2021 in period B. Conclusion: This study reveals that the COVID-19 pandemic changed the epidemiological profile of SARI in RS, and most cases were in the elderly with chronic cardiovascular disease and diabetes mellitus.
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