Microbiological risk of viral infections associated with aquatic transmission

Introduction. Drinking unsafe water leads to the development of certain viral infectious diseases. The World Health Organization (2022) has identified the role of water in the transmission of Enterovirus, Rotavirus, Norovirus, and other viruses.The aim of the work is to study the contamination of various types of waters with pathogenic viruses as a microbiological risk factor for intestinal infections.Materials and methods. During 2014–2023, as part of control and preventive measures, samples (n=4,458,116) of centralized and decentralized water supply, surface water bodies, and wastewater were taken in all Russian Federation regions. Contamination of water with intestinal infection viruses and coliphages was determined by nucleic acid amplification (MANC) (Rotavirus, Adenovirus F, Norovirus, Astrovirus, Enterovirus), serological (hepatitis A) and cultural methods (Enterovirus, coliphages). Linear regression analysis was used to assess the possible relationship between water contamination factors and prevalence.Results. The as detected higher detectability of nucleic acids of viruses compared to coliphages in disinfected water (p