Evaluation of the two in-patient hospitals on potential environmental hazard during the period of new coronavirus infection in the Khabarovsk city (december 2020

Evaluation of the two in-patient hospitals on potential environmental hazard during the period of new coronavirus infection in the Khabarovsk city (december 2020 — march 2021)

Published:2022-07-04 Issue:3 Volume:12 Page:535-542
ISSN:2313-7398
Container-title:Russian Journal of Infection and Immunity
language:
Short-container-title:Russian Journal of Infection and Immunity

Author:

Trotsenko Olga E.^ORCID,Bondarenko A. P.^ORCID,Pshenichnaya N. Y.^ORCID,Zaitseva T. A.^ORCID,Garbuz Y. A.,Chishagorova Inna V.,Shmylenko V. A.^ORCID,Bazykina Elena A.^ORCID,Ogienko Olga N.^ORCID

Abstract

Microbiological monitoring after infectious diseases in the system of epidemiological surveillance implies simultaneous pathogen identification both among patients and in hospital environment. Our aim is to assess potential hospital environmental hazard for the two in-patient infectious disease hospitals of the Khabarovsk city by using bacteriological and epidemiological analysis during new coronavirus disease pandemic. Materials and methods. Bacteriological assessment of nasopharyngeal microflora in 241 patients suffering from community-acquired pneumonia that were hospitalized in the two prevention and treatment facilities of the Khabarovsk city was performed. Sanitary-bacteriological control of hospital environment (428 hospital environment samples and 91 air samples) was carried out in parallel. Bacteriological assessment was performed with classical methods. Identification of isolated bacteriological pathogens and evaluation of drug-resistant strains were carried out by utilizing bacteriological analyzer Vitek 2 Compact. Results. Nine different pathogens (Pseudomonas aeruginosa, Pseudomonas stutzeri, Acinetobacter baumannii, Klebsiella pneumoniae, Klebsiella oxytoca, Enterobacter cloacae, Pantoea, Enterococcus faecium, Staphylococcus haemolyticus) were isolated in 20 out of 428 samples 4.7% [2.76.7]. Half of isolated agents 2.3% [0.93.8] were represented by drug-resistant isolates (10 out of 20 isolates) including 5 carbapenem-resistant isolates (Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae) and 5 isolates with multiple drug resistance (Enterobacter cloacae, Pantoea, Enterococcus faecium, Staphylococcus haemolyticus). Air samples contained pathogenic biological agents found in 6 out of 91 samples 6.6% [1.511.7], and half of them 3.3% [0.67.9] were identified as drug-resistant variants, including S. aureus и S. haemolyticus. One of the surveyed hospitals was recognized as more hazardous due to microflora isolated from intensive care unit (A. baumannii and P. aeruginosa were resistant to 3rd4th generation cephalosporins and carbapenems). Conclusion. Revealed circulation of wide range of microorganisms isolated from environment of two in-patient hospitals indicates high risk of healthcare-associated infections formation. Intensive care units can serve as a reservoir of healthcare-associated infections due to high percentage of patients with severe disease cases (main reservoir of drug-resistant strains).

Publisher

SPb RAACI

Subject

Infectious Diseases,Immunology,Immunology and Allergy

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