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Presence and characterization of blaNDM-1-positive carbapenemase-producing Klebsiella pneumoniae from outpatients in Thailand

Presently, community-associated carbapenemase-producing Enterobacterales (CPE) remains largely unknown and require public attention. This study aimed to investigate the presence of CPE from outpatients in Thailand. Non-duplicate stool (n = 886) and urine (n = 289) samples were collected from outpati...

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Published in:Journal of microbiology, immunology and infection immunology and infection, 2023-06, Vol.56 (3), p.612-623
Main Authors: Assawatheptawee, Kanit, Sowanna, Non, Treebupachatsakul, Pornpit, Na-udom, Anamai, Luangtongkum, Taradon, Niumsup, Pannika R.
Format: Article
Language:English
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Summary:Presently, community-associated carbapenemase-producing Enterobacterales (CPE) remains largely unknown and require public attention. This study aimed to investigate the presence of CPE from outpatients in Thailand. Non-duplicate stool (n = 886) and urine (n = 289) samples were collected from outpatients with diarrhea and urinary tract infection, respectively. Demographic data and characteristics of patients were collected. Isolation of CPE was performed by plating enrichment culture on agar supplemented with meropenem. Carbapenemase genes were screened by PCR and sequencing. CPE isolates were phenotypically and genotypically characterized. Fifteen samples (1.3%, 14 stool and 1 urine) yielded blaNDM-1-positive carbapenemase-producing Klebsiella pneumoniae (CPKP). Additional resistance to colistin and tigecycline was observed in 53.3% and 46.7% of isolates, respectively. Age >60 years was identified as a risk factor for patients with CPKP (P 
ISSN:1684-1182
1995-9133
DOI:10.1016/j.jmii.2023.01.018