Characteristics of respiratory tract bacterial microflora detected in patients suffering from community-acquired pneumonia during continuing spread of the new coronavirus infection in Khabarovsk city (december 2020 — march 2021)
- 作者: Trotsenko O.E.1, Bondarenko A.P.1, Shmylenko V.A.1, Bazykina E.A.1, Pshenichnaya N.Y.2, Zaitseva T.A.3, Tkacheva N.K.4, Ogienko O.N.1
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隶属关系:
- Khabarovsk Scientific Research Institute of Epidemiology and Microbiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
- Central Scientific Research Institute of Epidemiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
- The Khabarovsk Krai Rospotrebnadzor Regional Office
- Medical-Prophylactic Institution No. 2
- 期: 卷 12, 编号 4 (2022)
- 页面: 713-725
- 栏目: ORIGINAL ARTICLES
- URL: https://journal-vniispk.ru/2220-7619/article/view/119087
- DOI: https://doi.org/10.15789/2220-7619-COR-1839
- ID: 119087
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详细
Objective of the research — to specify respiratory tract bacterial microflora in patients suffering from community-acquired pneumonia (CAP) during initial and repeat examination. To determine local factors affecting microflora in the cohort examined.
Materials and methods. Surveillance subject — 241 patients with CAP differed by their status and age who stayed in two healthcare facilities of the Khabarovsk city. Examination of respiratory smears was performed. Results. Indices of Gram-negative enterobacteria (30.8% [22.6–39.7%]) and Gram-negative nonfermentable bacteria (14.5% [8.6–21.7%]), isolated from patients hospitalized in healthcare institution No. 1 and mostly comprised of the elderly (aged over 61 years — 82.0%; 74.3–88.6%) with more severe disease state including patients at the ICU, were higher compared to data obtained from healthcare institution No. 2 (19.8% (13.4–27.0); 6.1% (2.7–10.8) respectively). Prevalent pathogen was Klebsiella pneumoniae — 13.6% (7.8–20.6) and 10.7% (6.0–16.5). Identification of Acinetobacter baumannii complex — 6.4% (2.6–11.7) and 3.1% (0.8–6.7) — should be also noted. A high percentage of drug-resistant bacterial variants was observed and for Klebsiella pneumoniae totaled 66.7% (41.8–87.4) and 57.1% (32.2–80.2) at the healthcare institutions No. 1 and No. 2, respectively. A. baumannii complex drug resistant variants were found in 85.7% (52.7–99.97) at healthcare institution No. 1. All isolates of A. baumannii complex at the healthcare institution No. 2 were drug resistant. High prevalence of Candida spp. was revealed in both healthcare institutions reaching 54.5% (45.2–63.7) and 58.0% (49.5–66.3), respectively, with minimal detection rate of classic pathogens such as S. pneumoniae — 5.4% (2.0–10.4) and 5.3% (2.1–9.8) and H. influenzae — 3.6% (0.9–7.9) and 3.8% (1.2–7.7), respectively. Repeat examination of 122 patients conducted 7–10 days later showed diverse changes in microflora spectrum regardless of the healthcare institution that was manifested as loss or emergence of drug-resistant variants as well as simultaneous presence of different variants of the same pathogen.
Conclusion. The results obtained evidence about complexity and variety of mechanisms underlying microorganism community formation during the course of infectious process in patients. Local factors influencing microflora characteristics of patients at the two healthcare institutions were revealed.
作者简介
Olga Trotsenko
Khabarovsk Scientific Research Institute of Epidemiology and Microbiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
编辑信件的主要联系方式.
Email: trotsenko_oe@hniiem.ru
ORCID iD: 0000-0003-3050-4472
hD, MD (Medicine), Director
俄罗斯联邦, 2, Shevchenko str., Khabarovsk, 680000Albina Bondarenko
Khabarovsk Scientific Research Institute of Epidemiology and Microbiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
Email: adm@hniiem.ru
ORCID iD: 0000-0002-9197-8519
PhD (Medicine), Head of the Bacteriological Laboratory
俄罗斯联邦, 2, Shevchenko str., Khabarovsk, 680000Vlada Shmylenko
Khabarovsk Scientific Research Institute of Epidemiology and Microbiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
Email: adm@hniiem.ru
ORCID iD: 0000-0002-7170-3032
Researcher, Bacteriological Laboratory
俄罗斯联邦, 2, Shevchenko str., Khabarovsk, 680000Elena Bazykina
Khabarovsk Scientific Research Institute of Epidemiology and Microbiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
Email: alyonaf@yandex.ru
ORCID iD: 0000-0002-5695-6752
Researcher
俄罗斯联邦, 2, Shevchenko str., Khabarovsk, 680000Natalia Pshenichnaya
Central Scientific Research Institute of Epidemiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
Email: natalia-pshenichnaya@yandex.ru
ORCID iD: 0000-0003-2570-711X
PhD, MD (Medicine), Professor, Deputy Director for Clinical Analytical Studies
俄罗斯联邦, MoscowTatiana Zaitseva
The Khabarovsk Krai Rospotrebnadzor Regional Office
Email: root@sanepid.khv.ru
ORCID iD: 0000-0002-3531-4996
Head
俄罗斯联邦, KhabarovskNatalia Tkacheva
Medical-Prophylactic Institution No. 2
Email: adm@hniiem.ru
Hospital Epidemiologist
俄罗斯联邦, KhabarovskOlga Ogienko
Khabarovsk Scientific Research Institute of Epidemiology and Microbiology of the Federal Service for Surveillance on Consumers Rights Protection and Human Wellbeing (Rospotrebnadzor)
Email: adm@hniiem.ru
ORCID iD: 0000-0003-3872-0006
Junior Researcher, Bacteriological Laboratory
俄罗斯联邦, 2, Shevchenko str., Khabarovsk, 680000参考
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