Affiliation:
1. Research Institute of Disinfectology of the Federal Service for Oversight of Consumer Protection and Welfare
2. Research Institute of Disinfectology of the Federal Service for Oversight of Consumer Protection and Welfare; Russian Medical Academy of Continuing Professional Education
3. Research Institute of Disinfectology of the Federal Service for Oversight of Consumer Protection and Welfare; Central research institute of epidemiology of Federal Service for Oversight of Consumer Protection and Welfare
Abstract
Introduction. Among infectious agents associated with provision of medical care, resistant ones to disinfectants from various chemical groups are more often met. In this regard, disinfection measures carried out in a medical facility are not always effective enough. Material and methods. 9 strains of microorganisms were selected for research (Klebsiella pneumoniae -2 pcs., Enterococcus faecalis, Staphylococcus warneri, Serratia rubidaea, Staphylococcus sciuri, Enterobacter cloacae, Acinetobacter baumannii, Enterococcus faecium - per 1 pcs.), isolated from the objects of hospital environment in operating unit, intensive care and trauma units, as well as 5 samples of disinfectants from different chemical groups (on the basis of quaternary ammonium salt, tertiary amine and polyhexamethyleneguanidine; on the basis of sodium percarbonate with activator; on the basis of hydrogen peroxide and didecyldimethylammonium chloride; in the form of tablets on the basis of sodium salt sodium dichloroisocyanurate acid), used in the specified divisions of medical facities. The studies were performed in accordance with the methodology set out in methodology instructions MU 3.5.1.3439-17 “Assessment of sensitivity to disinfectants of microorganisms circulating in medical organizations.” Results. When conducting chemical-analytical studies of samples of disinfectants 4 samples out of 5 were found to have inconsistencies in one or another quality indices. The analysis of instructions on application of disinfectants 4 means from 5 were showed to have unreasonably underestimated modes of application. According to the results of the evaluation of the sensitivity of microorganisms to disinfectants, the majority of isolated microorganisms was found to have resistance to the studied disinfectants Conclusion. Based on the results of the study of sensitivity of microorganisms to disinfectants, a new tactic for improving disinfection measures is proposed for medical facilities: rotation of disinfectants and an enhanced system of microbiological monitoring of the sensitivity of microorganisms to disinfectants
Publisher
Federal Scientific Center for Hygiene F.F.Erisman
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health,Pollution,General Medicine
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