scholarly journals High prevalence of multidrug-resistant Pneumococcal molecular epidemiology network clones among Streptococcus pneumoniae isolates from adult patients with community-acquired pneumonia in Japan

2009 ◽  
Vol 15 (11) ◽  
pp. 1039-1045 ◽  
Author(s):  
S. Imai ◽  
Y. Ito ◽  
T. Ishida ◽  
T. Hirai ◽  
I. Ito ◽  
...  
MedPharmRes ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 17-21
Author(s):  
Lam Nguyen-Ho ◽  
Duong Hoang-Thai ◽  
Vu Le-Thuong ◽  
Ngoc Tran-Van

Background: One of several reasons that the concept of healthcare-associated pneumonia (HCAP) was dismissed was the same presence of multidrug resistant organism (MDRO) between community-acquired pneumonia and HCAP at countries with the low prevalence of antimicrobial resistance (AMR). However, this finding could be unsuitable for countries with the high rates of AMR. Methods: A prospective observational study was conducted at the respiratory department of Cho Ray hospital from September 2015 to April 2016. All adult patients suitable for community acquired pneumonia (CAP) with risk factor for healthcare-associated infection were included. Results: We found out 130 subjects. The median age was 71 years (interquartile range 57-81). The male/female ratio was 1.55:1. Prior hospitalization was the most common risk factor for healthcare-associated infection. There were 35 cases (26.9%) with culture-positive (sputum and/or bronchial lavage). Isolated bacteria included Pseudomonas aeruginosa (9 cases), Klebsiella pneumoniae (9 cases), Escherichia coli (4 cases), Acinetobacter baumannii (6 cases), and Staphylococcus aureus (7 cases) with the characteristic of AMR similar to the bacterial spectrum associated with hospital-acquired pneumonia. Conclusion: MDROs were detected frequently in CAP patients with risk factor for healthcare-associated infection at the hospital with the high prevalence of AMR. This requires the urgent need to evaluate risk factors for MDRO infection in community-onset pneumonia when the concept of HCAP is no longer used.


1995 ◽  
Vol 14 (9) ◽  
pp. 745-750 ◽  
Author(s):  
JEFFREY S. DUCHIN ◽  
ROBERT F. BREIMAN ◽  
ANN DIAMOND ◽  
HARVEY B. LIPMAN ◽  
STAN L. BLOCK ◽  
...  

CHEST Journal ◽  
2004 ◽  
Vol 126 (4) ◽  
pp. 849S
Author(s):  
Renee Blosser ◽  
Mark E. Jones ◽  
Robert K. Flamm ◽  
Glenn S. Tillotson ◽  
David A. Styers ◽  
...  

Author(s):  
А. В. Мартынова ◽  
О. С. Павлова ◽  
О. А. Чулакова

Несмотря на достигнутые успехи в диагностике и лечении инфекций респираторного тракта, заболеваемость бактериальными инфекциями лиц пожилого возраста до сих пор представляет собой значимую проблему современной медицины. При этом микробиологическая характеристика этиологического спектра возбудителей, идентифицируемых при внебольничной пневмонии у лиц пожилого возраста в последнее время, позволяет считать ведущим этиологическим агентом Streptococcus pneumoniae . Устойчивость штаммов S. pneumoniae к антибактериальным химиопрепаратам является актуальной проблемой при лечении всех форм пневмококковых инфекций, а также одним из факторов, определяющих эпидемиологическую значимость последних, обусловленную риском формирования эпидемического варианта. Цель исследования - оценка особенностей формирования антибиотикоустойчивости у штаммов S. pneumoniae , выделенных у пациентов пожилого возраста с диагнозом внебольничной пневмонии и хронического бронхита. В исследовании применяли диско-диффузионный метод и метод серийных разведений. Был проведен молекулярногенетический мониторинг выделенных штаммов к основным генетическим детерминантам антибиотикорезистентности. Из представленных данных следует, что как в группе штаммов, вызвавших внебольничную пневмонию, так и в группе штаммов, вызвавших неинвазивные формы инфекции (бронхит), полирезистентность определяется сходными процессами формирования устойчивости к препаратам ряда макролидов. В целом полученные данные позволяют предположить, что в популяции штаммов S. pneumoniae , вызывающих инвазивные и неинвазивные формы инфекционного процесса, развиваются процессы формирования устойчивости к препаратам ряда макролидов. Despite of advances in diagnostics and treatment of respiratory tract infections, respiratory tract bacterial infections morbidity is still remaining the significant problem of modern medicine. Moreover, microbiological diagnostics of etiology identified in community-acquired aged patients pathogens spectrum allows to consider the main causative agent Streptococcus pneumoniae . Antimicrobial agents resistance of this pathogen is the actual problem in treatment of all forms of pneumococcal infections and is still one of the factor defining the epidemiology significance of pneumococcal infection as the source of forming of epidemiological clone. Aim of our study was to estimate the peculiarities of antimicrobial agents resistance of S . pneumoniae strains, isolated in aged patients with diagnosis of community-acquired pneumonia and bronchitis. There were used such methods as disco-diffusion method, method of minimum inhibitory concentration, strains were isolated from patients with community-acquired pneumonia, bronchitis, and carriers, then there were conducted molecular epidemiology monitoring of the isolated strains to the main antimicrobial agents resistance determinants. There were revealed that in all groups multidrugresistance had been caused with the similar process of forming to macrolides. In colculsion, the gained results allows to consider that in population causing invasive and non-invasive forms there are the same processes of antimicrobial agents resistance to macrolides.


2021 ◽  
Vol 6 (1) ◽  
pp. 47-52
Author(s):  
E. A. Chezganova ◽  
N. V. Medvedeva ◽  
V. M. Sakharova ◽  
E. B. Brusina

Aim. To study the trends in the prevalence of respiratory tract infections in the population of Kemerovo Region and to interrogate the particulate matter as a possible route for the transmission of multidrug-resistant microorganisms into medical organisations.Materials and Methods. We investigated the prevalence of acute respiratory infections and community-acquired pneumonia among the population of Kuzbass (Kemerovo Region) according to the offcial medical records collected from 2004 to 2020. The study included 10,320,384 cases of acute respiratory infections, 145,357 cases of community-acquired pneumonia, 344,703 hospitalisations of the adults (subjects ≥ 18 years of age) and 75,041 hospitalisations of children (< 18 years of age). Collection of particulate matter samples (n = 97) was performed using sterile gloves and containers from ventilation grilles and adjacent air ducts of the exhaust ventilation systems in various healthcare settings. Bacterial composition of the dust was examined using a VITEK 2 Compact biochemical analyzer. Viral diversity was screened by polymerase chain reaction.Results. Over the study period, respiratory infections were common in Kemerovo Region (average prevalence 22,155.9 per 100,000 population) and showed an increasing incidence. Frequency of respiratory infections among the hospitalised patients was 207.14 per 1,000, being 1.63-fold higher in children than in adults (304.15 and 186.02, respectively). In 2020, the proportion of cefotaxime-resistant Klebsiella spp. was 26.20% that was strikingly high compared to 2019. Hospital particulate matter frequently (71.13% samples) harboured multidrug-resistant microorganisms.Conclusions. High prevalence and morbidity from respiratory infections in Kemerovo Region are combined with high prevalence and biodiversity of airborne microorganisms, in particular multidrug-resistant microbes contaminating the hospital particulate matter.


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