Antimicrobial resistance of Klebsiella pneumoniae stool isolates circulating in Kenya
نویسندگان
چکیده
We sought to determine the genetic and phenotypic antimicrobial resistance (AMR) profiles of commensal Klebsiella spp. circulating in Kenya by testing human stool isolates of 87 K. pneumoniae and three K. oxytoca collected at eight locations. Over one-third of the isolates were resistant to ≥3 categories of antimicrobials and were considered multidrug-resistant (MDR). We then compared the resistance phenotype to the presence/absence of 238 AMR genes determined by a broad-spectrum microarray and PCR. Forty-six genes/gene families were identified conferring resistance to β-lactams (ampC/blaDHA, blaCMY/LAT, blaLEN-1, blaOKP-A/OKP-B1, blaOXA-1-like family, blaOXY-1, blaSHV, blaTEM, blaCTX-M-1 and blaCTX-M-2 families), aminoglycosides (aac(3)-III, aac(6)-Ib, aad(A1/A2), aad(A4), aph(AI), aph3/str(A), aph6/str(B), and rmtB), macrolides (mac(A), mac(B), mph(A)/mph(K)), tetracyclines (tet(A), tet(B), tet(D), tet(G)), ansamycins (arr), phenicols (catA1/cat4, floR, cmlA, cmr), fluoroquinolones (qnrS), quaternary amines (qacEΔ1), streptothricin (sat2), sulfonamides (sul1, sul2, sul3), and diaminopyrimidines (dfrA1, dfrA5, dfrA7, dfrA8, dfrA12, dfrA13/21/22/23 family, dfrA14, dfrA15, dfrA16, dfrA17). This is the first profile of genes conferring resistance to multiple categories of antimicrobial agents in western and central Kenya. The large number and wide variety of resistance genes detected suggest the presence of significant selective pressure. The presence of five or more resistance determinants in almost two-thirds of the isolates points to the need for more effective, targeted public health policies and infection control/prevention measures.
منابع مشابه
Antimicrobial Resistance Pattern and Prevalence of Class 1, 2, and 3 Integrons in Clinical Isolates of Klebsiella Pneumoniae in Loghman-E Hakim Hospital, Tehran
Abstract Background and Objective: Multiple drug resistance has increased in recent years in Klebsiella pneumoniae isolates. The Integrons are mobile genetic elements that carry antibiotics resistance genes. The aim of this study was to determine antibiotic susceptibility and the prevalence of class 1, 2, and 3 integrons in clinical Klebsiella pneumoniae isolated from clinical specimens. Materi...
متن کاملEvaluation of the Resistance Pattern of Escherichia Coli and Klebsiella Pneumoniae Against Beta Lactam and Non Beta Lactam Antibiotics
This study was designed to determine Escherichia coli and Klebsiella pneumoniae resistance pattern to some beta and non-beta lactam antibiotics currently in use. Fifty (50) samples (25 stool sample and 25 sputum sample) were collected and cultured using streak method of inoculation. Fifteen (15) isolates of Klebsiella pneumoniae was gotten from sputum samples and 15 isolates of E.coli gotten fr...
متن کاملMOLECULAR TYPING AND INVESTIGATING THE PRESENCE OF EFFLUX GENES IN URINARY ISOLATES OF KLEBSIELLA PNEUMONIAE
Background & Aims: The efflux pumps play an important role in the development of drug resistance in Klebsiella pneumoniae. The aim of this study was to investigate the antibiotic resistance, and the presence of efflux genes, as well as molecular typing in clinical isolates of Klebsiella pneumoniae. Materials & Methods: In this cross sectional descriptive study, a total of 100 K. pneumoniae iso...
متن کاملآنالیز اینتگرونها و کاستهای ژنی مربوطه در ایزولههای بالینی اشریشیاکلی
Background and Objective: Horizontal transfer of integrons is the most successful transfer of antimicrobial resistance genes and the emergence of multi-drug resistance strains. The aim of the present study was to investigate the prevalence of class I and II integrons and their gene cassette assortments and antibiotic resistance profile in Escherichia coli strains isolated from diarrheal and uri...
متن کاملThe Frequency of qnr Genes in Extended-Spectrum β-lactamases and non-ESBLs Klebsiella pneumoniae Species Isolated from Patients in Mashhad, Iran
Background and Objectives: Since the fluoroquinolones are the broad-spectrum antibiotics, they affect both Gram-negative and Gram-positive bacteria. These antibiotics are widely prescribed by physicians. As a result, some bacteria, especially Enterobacteriaceae, have shown a resistance to this family of antibiotics. The current study a...
متن کامل