Abstract
Acute respiratory viral infections still remain a pressing health problem, causing both seasonal outbreaks and epidemics and global pandemics. The emergence of a new coronavirus infection has become a serious challenge, resulting in more than 776 million cases of disease and more than 7 million deaths worldwide, which could not but affect the circulation of existing seasonal pathogens. This paper provides a retrospective analysis of the structure of acute respiratory viral infections during the height of the COVID-19 pandemic using the example of a single subject (Northwestern Federal District) in the autumn-winter periods of 2021–2022, presents the dynamics of the incidence of acute respiratory viral infections and influenza in Russia and the Northwestern Federal District, cases of co-infections were identified and analyzed. It is shown that between 2021 and 2022, the accession of a new coronavirus infection increased the overall incidence of respiratory viral infections until August 2022, and the decrease in COVID-19 incidence by the end of 2022 compared with the incidence of other respiratory viruses. ARVI pathogens that circulated during the COVID-19 pandemic were identified, namely: influenza A virus, adenoviruses, seasonal coronaviruses, rhinoviruses, bocaviruses, respiratory syncytial virus and type 3 parainfluenza virus. The results of the study showed that influenza A virus, bocaviruses and respiratory syncytial virus are more often detected as monoinfections and can influence the spread of other respiratory viruses. While adenoviruses, rhinoviruses and type 3 parainfluenza viruses are most often found in the form of co-infection with COVID-19, which creates an additional viral load in patients and can complicate the course of the disease.
Published Version
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