UDC

616.34-022:613.34

DOI

10.17238/issn2542-1298.2019.7.3.301

Authors

Elena V. Baydakova*/**, Andrey B. Gudkov**, Tat’yana N. Unguryanu*/**
*Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing in the Arkhangelsk Region (Arkhangelsk, Russian Federation)
**Northern State Medical University (Arkhangelsk, Russian Federation)
Corresponding author: Elena Baydakova, address: ul. Gaydara 24, Arkhangelsk, 163000, Russian Federation; e-mail: elenabaydakova@yandex.ru

Abstract

The epidemic process of acute viral intestinal infections is intensified through water, partly due to resistance of intestinal viruses to chlorine-containing disinfectants. We performed a comparative analysis of sporadic incidence of acute intestinal infections in the cities of the Arkhangelsk Region over 10 years (2009–2018). It was established that among all registered cases of acute intestinal infections, 65.5 % were of unknown aetiology while in 34.5 % the aetiology was determined. The greatest risk of viral intestinal infections was identified in the cities located in the Northern Dvina River basin. An increased risk of incidence of rotavirus infection was identified for children aged 0–2 years in all studied cities of the region. Particular concern is caused by a tendency towards an increase in rotavirus infection (+23.5 %) among the population of Koryazhma. In Arkhangelsk and Novodvinsk, the incidence rate of enterovirus infection among preschool-age children exceeds that of Severodvinsk by the factor of 3.3–18.4. We found marked differences in the incidence rates of norovirus infection among adults and preschool children and of enterovirus infection among children of Arkhangelsk and Novodvinsk compared to the rates in Severodvinsk. As a result of the study, we formulated an epidemiological hypothesis about the role of water; namely, that in cities having the Northern Dvina River (Arkhangelsk and Novodvinsk) and its basin (the Limenda River in Kotlas and the Vychegda River in Koryazhma) as their water source, the predicted incidence rates of viral intestinal infections are higher than in Severodvinsk.

Keywords

viral intestinal infections, drinking water, multiyear incidence rate dynamics, Arkhangelsk Region

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