Bondareva E., Makarova M.N., Makarov V.G., Kryshen A.A., Petrova А.V., Borovkova К.E. Duration of bactericidal effect of UV lamps in vivarium. Sources of air contamination in vivarium. Laboratory Animals for Science. 2019; 3. https://doi.org/10.29296/2618723X-2019-03-08
Supporting optimal conditions in experimental vivarium is important for the technological process and the safe living of laboratory animals, otherwise, it can affect the health of workers, the health of laboratory animals and lead to a distortion of research results and incorrect conclusions. Among the numerous factors, the quality of air in vivarium is important - the contamination of air by microorganisms (pathogenic or conditionally pathogenic) can cause one or other infectious diseases in both workers and laboratory animals. Reducing the number of dangerous microorganisms is one of the priorities of the experimental vivarium.
There are many methods of disinfecting air to protect workers and laboratory animals from exposure to adverse microflora. The most effective, economical and safe method is the ultraviolet (UV) radiation.
The article describes the duration of the bactericidal effect after air disinfection using UV in the experimental vivarium. The bactericidal effect was evaluated at various stages of disinfection. The correctness of the used modes of disinfection, the bactericidal effectiveness of UV lamps are evaluated.
The main goal was to study the effectiveness of UV disinfection at critical stages of the technological process, when the bedding of laboratory animals is replacing, when animals are feeding and cleaning is going in the rooms, which leads to an increase in dust, wool and other airborne particles. The study confirmed the rationality of the use of UV radiation as a method of disinfecting the air of experimental vivarium. The disinfection mode is optimal and allows to control the contamination of the air during the entire process and most importantly reduces the number of infectious agents in the air after dirty work in the vivarium when high-quality disinfection is needed.
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