No abstract

The aim of the work was to evaluate the efficiency of using the “Fhileas 75” hydrogen peroxide vapor generator for decontaminating the air ducts of the individually ventilated system, “Bio A.S.”, for housing of infected animals.Materials and methods. The hydrogen peroxide vapor generator “Fhileas 75” (France), a disinfectant manufactured by “FHILEASAFE” (7 % hydrogen peroxide solution and 0.15 % peracetic acid solution), separately ventilated system “Bio A.S.” (Germany) for the infected animal housing were applied in the work. Serratia marcescens 9 was used as test-culture.Results and discussion. The efficiency of using the hydrogen peroxide vapor generator “Fhileas 75” for decontamination of air ducts and internal surfaces of the rack of the individually ventilated system “Bio A.S.” on the test-culture S. marcescens 9 at 1·106 mc/ml concentration has been established (operation parameters of the individually ventilated system unit are as follows: air exchange rate – 60 changes per hour, air flow volume – 28 m3/hour, number of disinfection cycles – 5, disinfectant spraying time – 97 min, exposure time – 24 hours).

Introduction: The state biological safety system is an important component of the national security system. Handling of biological agents is always potentially hazardous. One of the types of work that poses the risk of developing laboratory-acquired infections includes studies of infected biological models used for experimental, production and diagnostic purposes in the laboratory facilities of various agencies authorized to deal with biological agents of pathogenicity groups I to IV. Objective: The study aimed to analyze the up-to-date regulatory, methodological and legislative framework setting requirements for technical and design features of special purpose laboratories suitable for work involving infected animals in order to minimize health risks. Methods: We analyzed regulatory documents and scientific publications found in bibliographic databases (Web of Science, PubMed, and eLIBRARY) using keyword searches and selected 35 sources for the present review. Results: Special attention is paid to the design of laboratories intended for experimental and diagnostic work with biological models infected with biological agents of pathogenicity groups I and II. Both construction and reconstruction of existing premises are carried out in accordance with the design documentation and have a number of specific features. The combination of facilities depends on the goals and objectives of the laboratory. The laboratory premises shall be provided with water supply, special sewerage, power supply, heating, exhaust ventilation, telephone communications, as well as security and fire alarms and fire extinguishing equipment in accordance with fire safety requirements. Conclusions: The results of analyzing the current regulatory, methodological and legislative framework governing technical and design characteristics of special purpose laboratories suitable for work with infected animals confirm that strict compliance with the appropriate requirements enables their effective performance and guarantees safety for human health and the environment by eliminating biological risks.