Article
Infectious Diseases
Cecile Emeraud, Aba Mahamat, Agnes B. Jousset, Sandrine Bernabeu, Tania Goncalves, Camille Pommier, Delphine Girlich, Aurelien Birer, Christophe Rodriguez, Jean-Michel Pawlotsky, Thierry Naas, Remy A. Bonnin, Laurent Dorte
Summary: Since 2021, the rapid spread of highly resistant NDM-14 producing Klebsiella pneumoniae has been identified in hospitals in France. This strain, primarily imported from Morocco, is highly resistant to most antimicrobials and belongs to a single clone. However, it remains susceptible to colistin, cefiderocol, and the combination of aztreonam/avibactam.
Article
Infectious Diseases
Constantinos Tsioutis, Vanessa M. Eichel, Nico T. Mutters
Summary: This critical review aimed to evaluate the effectiveness of measures to control the spread of KPC-KP in healthcare settings, finding that successful control during outbreaks doesn't necessarily indicate the effectiveness of individual infection control measures, due to low-quality evidence and lack of controlled intervention studies. The distribution of studies, reported cases, and high mortality rates highlight that KPC-KP remains a major healthcare problem globally.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2021)
Article
Microbiology
Alessandra Carattoli, Gabriele Arcari, Giulia Bibbolino, Federica Sacco, Dario Tomolillo, Federica Maria Di Lella, Maria Trancassini, Luigi Faino, Mario Venditti, Guido Antonelli, Giammarco Raponi
Summary: A study conducted in a university hospital in Rome, Italy identified multiple CZA-resistant KPC-3 protein variants, including novel variants that had not been reported before. These variants showed different sensitivities and activities to antibiotics, possibly due to mutations caused by amino acid substitutions, insertions, and deletions.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2021)
Article
Infectious Diseases
Jee Hong Kim, Yun Young Cho, Ji Young Choi, Yu Mi Wi, Kwan Soo Ko
Summary: This study investigated the characteristics of KPC-2-producing Klebsiella pneumoniae isolates from a hospital in South Korea. It identified two main clones, ST11 and ST307, with different resistance profiles and virulence levels. Continuous monitoring of these clones, which show different characteristics including resistance and virulence, is necessary.
Article
Engineering, Environmental
Erica M. Loudermilk, Shireen M. Kotay, Katie E. Barry, Hardik Parikh, Lisa M. Colosi, Amy J. Mathers
Summary: This study traced the presence of the antimicrobial resistance gene KPC and the viable organisms carrying this gene in hospital wastewater, municipal wastewater treatment plants (WWTP), and receiving water samples. The study found high concentrations of the KPC gene and the viable organisms in the hospital wastewater and the initial stages of the WWTP, but not in the final effluent following UV disinfection. The KPC-producing organisms were also found in the biosolids throughout the WWTP, but not in the processed compost-products made from the biosolids.
Article
Medicine, General & Internal
Yuxin Yang, Jia Liu, Murad Muhammad, Hanting Liu, Zongsu Min, Jing Lu, Lei Zhang, Zhonglin Chai
Summary: The emergence of carbapenem-resistant Enterobacteriaceae poses a significant challenge to treatment, particularly in a hospital in Zunyi, China. Analysis of resistant genes and genetic relationships revealed a correlation between carbapenem usage, hospital hygiene practices, and increasing isolation rate of resistant strains.
Article
Microbiology
Junna Wang, Yu Feng, Zhiyong Zong
Summary: Carbapenem-resistant Klebsiella pneumoniae (CRKP),a type of bacteria resistant to carbapenems, poses a severe threat to global health and is associated with longer hospital stays and higher mortality rates in affected patients. The spread of CRKP is mainly driven by a few dominant lineages, including ST11-KL64, which is the most common type in China and is found worldwide.
MICROBIOLOGY SPECTRUM
(2023)
Article
Infectious Diseases
Lin Huang, Min Cao, Yanyan Hu, Rong Zhang, Yufei Xiao, Gongxiang Chen
Summary: The trend of fosfomycin resistance among KPC-KP strains is increasing in China, with the two major mechanisms of resistance being plasmid-mediated fosfomycin resistance gene fosA3 and mutation of the target gene glpT.
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
(2021)
Article
Genetics & Heredity
Cuidan Li, Xiaoyuan Jiang, Tingting Yang, Yingjiao Ju, Zhe Yin, Liya Yue, Guannan Ma, Xuebing Wang, Ying Jing, Xinhua Luo, Shuangshuang Li, Xue Yang, Fei Chen, Dongsheng Zhou
Summary: The dissemination of carbapenemase-producing Klebsiella pneumoniae (cpKP) is driven by specific combinations of host-blaKPC-carrying plasmids, which are associated with strong population expansion in 2007-2008. This study provides insights into the molecular epidemiology and genetic basis for the spread of ST11/CG258 cpKP in China.
GENOMICS PROTEOMICS & BIOINFORMATICS
(2022)
Article
Microbiology
Otavio Hallal Ferreira Raro, Patrice Nordmann, Manuel Dominguez Pino, Jacqueline Findlay, Laurent Poirel
Summary: There is an increasing occurrence of multidrug-resistant (MDR) and hypervirulent (hv) Klebsiella pneumoniae (MDR-hvKp) convergent clones. These strains can cause difficult-to-treat infections and have a higher mortality rate in healthy adults. This study in Switzerland identified a rate of 9.0% K. pneumoniae with a virulence genotype, producing carbapenemase and recovered from rectal swabs, urine, and blood. The presence of alarming MDR-hvKp and MDR nonhypervirulent K. pneumoniae (MDR-nhv-Kp) isolates highlights the need for surveillance networks to track and monitor their spread.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2023)
Article
Biochemistry & Molecular Biology
Hao Guo, Yuye Wu, Lirong Li, Jianfeng Wang, Juan Xu, Fang He
Summary: The study investigated the global dissemination trends of carbapenem-resistant Klebsiella pneumoniae (CRKP) strains that co-carry multiple carbapenemases. A CRKP strain, KP424, co-carrying blaNDM-1 and blaKPC-2, was identified and sequenced. Genome sequences of CRKP strains carrying multiple carbapenemase genes were retrieved from the NCBI GenBank database. The prevalence of CRKP strains co-carrying two carbapenemase genes has significantly increased over time, with strains carrying both blaNDM and blaOXA-48-like being the most common worldwide. Further research is needed to understand the mechanisms of multiple carbapenemase gene occurrence and prevent their global dissemination.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2023)
Article
Infectious Diseases
Irina Magdalena Dumitru, Mirela Dumitrascu, Nicoleta Dorina Vlad, Roxana Carmen Cernat, Carmen Ilie-Serban, Aurelia Hangan, Raluca Elena Slujitoru, Aura Gherghina, Corina Mitroi-Maxim, Licdan Curtali, Dalia Sorina Carp, Anca Dumitrescu, Romelia Mitan, Rodica Lesanu, Sorin Rugina
Summary: Infections with carbapenem-resistant Enterobacteriaceae pose a significant challenge in healthcare settings, especially with CRKP being resistant to the majority of available antimicrobial agents and leading to high rates of morbidity and mortality. A recent report of patients in an ICU with COVID-19 who developed invasive infections due to CP-Kp strains highlights the importance of rigorous antibiotic administration programs in intensive care units, especially for high-risk populations like the elderly.
Article
Infectious Diseases
Teresa Fasciana, Andrea Ciammaruconi, Bernardina Gentile, Paola Di Carlo, Roberta Virruso, Maria Rita Tricoli, Daniela Maria Palma, Giovanna Laura Pitarresi, Florigio Lista, Anna Giammanco
Summary: The rapid identification and characterization of multidrug-resistant Klebsiella pneumoniae strains is crucial for diagnosing severe infections in patients. Traditional methods such as pulsed-field gel electrophoresis or multilocus sequence typing are time-consuming, laborious, and expensive, while next-generation sequencing has emerged as a faster and more cost-effective alternative.
Article
Infectious Diseases
Yue Qiu, Daojiong Lin, Yi Xu, Yibing Cheng, Fang Wang, Qingxiong Zhu, Chunhui Zhu, Chaomin Wan, Yu Zhu, Jianning Tong, Rui Li, Qionghua Zhou, Minxia Chen, Qingwen Shan, Zhiqiang Zhuo, Caihong Wang, Shiyong Zhao, Wen Song, Mei Zeng
Summary: This study found that pediatric invasive KP infections and CRKP infections have a high prevalence in healthcare settings in China. Risk factors for healthcare-associated KP infections include prematurity, hematologic malignancies, and mechanical ventilation. Intensified infection control measures are necessary, with a focus on high-risk patients.
INFECTION AND DRUG RESISTANCE
(2021)
Article
Microbiology
Jacqueline Findlay, Laurent Poirel, Mario Juhas, Patrice Nordmann
Summary: This study evaluated the impact of KPC variants on CZA resistance, finding increased susceptibility to cephalosporins and carbapenems but increased resistance to ceftazidime and piperacillin-tazobactam. The KPC variants exhibited increased affinity towards ceftazidime and slightly decreased sensitivity to avibactam, impacting CZA resistance while concurrently negatively impacting carbapenemase activities.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2021)