EPIDEMIOLOGICAL FEATURES OF ACUTE RESPIROTORY VIRAL INFECTIONS, INFLUENZA AND COVID-19 IN THE CHUI REGION AND IN BISHKEK FOR 2014-2023

Abstract

The materials of the study in this paper comprise are the reporting data on the form №1 "On infectious and parasitic diseases" (F-1) of Bishkek and Chui region regarding the incidence of acute respiratory viral infections (ARVI), influenza and COVID-19 for the period from 2014 to 2023. The purpose of this study is to learn the epidemiological features of influenza, ARVI and COVID-19 in Chui region and in Bishkek. Analysis of the multi-year dynamics of influenza and acute respiratory viral infections revealed a periodic rise and fall of morbidity rates in all observed regions and in the country, occurring at intervals of 2-3 years. When examining the age-specific morbidity of influenza and acute respiratory viral infections in the republic for 2014-2023, it was found that the incidence rate in children is statistically significantly higher than in adults (P<0.01). The multi-year morbidity dynamics showed clearly pronounced seasonality of influenza and acute respiratory viral infections during winter, attributed to increased contact during winter periods and weakened general immune system. In contrast, no seasonality was observed in coronavirus infection. Relatively high levels recorded in summer periods are associated with increased population contact with no antibodies to the SARS-CoV-2 virus.