The Impact of Influenza of Different Etiologies on other ARVI in Children and Adults in 2014 to 2016

To assess the relationship between the incidence of influenza and RS, Corona, Metapneumo, Adeno, Paragripp, Rhino and Boca-viral infections, a correlation analysis of cases of influenza and each infection in the age groups of 24 cities of the Russian Federation was carried out. The age structure of infections had significant differences. Among the adult population, influenza was more often detected, more than A(H1N1)pdm09 (61.4%), and ARVI of no influenza etiology – among children 0–2 years, especially Boca-viral and RS-viral (72.5% and 62.8%) infections. The proportion of adults was higher than children aged 3–6 years, with Corona, Rhino and Paragripp infections. The pronounced winter-spring season of influenza was confirmed. RS, Corona and Metapneumo viral infection had a shift at the spring, and Adeno, Paragripp, Boca and Rhino-viral infections – in the autumn. A direct positive correlation between the incidence of influenza in the population as a whole and RS, Corona, Metapneumo, Adeno and Paragripp was shown, but there was no significant correlation with Rhino and Bocaviral infections. The correlation between the adult population and influenza was higher (strong – in RS) and was detected earlier than in children. The duration of correlation with influenza depended on the etiology of ARVI, influenza etiology and age.

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