Increasing prevalence of Escherichia coli and Klebsiella pneumoniae producing CTX-M-type extended-spectrum beta-lactamase, carbapenemase, and NDM-1 in patients from a rural community with community acquired infections: A 3-year study

被引:20
作者
Devi, Leimapokpam Sumitra [1 ]
Broor, Shobha [1 ]
Rautela, Rajendra Singh [2 ]
Grover, Shyam Sunder [3 ]
Chakravarti, Anita [1 ]
Chattopadhya, Debasish [1 ]
机构
[1] SGT Med Coll Hosp & Res Inst, Dept Microbiol, Gurgaon, Haryana, India
[2] Natl Ctr Dis Control, Div Biochem, Delhi, India
[3] Natl Ctr Dis Control, Div Microbiol, Delhi, India
关键词
Carbapenemase; community-acquired infections; Escherichia coli; extended-spectrum beta-lactamase; Klebsiella pneumoniae; New Delhi metallo-beta-lactamase-1; RISK-FACTORS; RESISTANCE; INDIA; EPIDEMIOLOGY; BACTERIA;
D O I
10.4103/ijabmr.IJABMR_360_19
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Increasing prevalence of community-acquired infections (CAIs) due to Escherichia coli and Klebsiella pneumoniae producing extended-spectrum beta-lactamase (ESBL), especially the Cefotaxime-Munich (CTX-M) type, carbapenemase, and New Delhi metallo-beta -lactamase (NDM), has been reported globally posing a serious public health threat that has complicated treatment strategies for Gram-negative bacterial infections. While most of the reports in this regard are based on hospitalized patients from the urban community, there is a paucity of data in a rural community presenting with CAIs. Materials and Methods: A total of 1275 strains of E. coli and K. pneumoniae isolated over a period of 3 years from patients with CAIs were subjected to the detection of ESBL by double-disc synergy test; carbapenemase by modified Hodge test; metallo-beta -lactamase by MIC test strip metallo-beta -lactamase (MBL); and blaTEM, blaSHV, blaCTX-M, and blaNDMgenes by polymerase chain reaction. Results: Among 1275 E. coli and K. pneumoniae isolated during the study period, 773 (60.6%), 102 (8%), and 28 (2.2%) isolates were detected as ESBL, carbapenemase and MBL producers, respectively. Of the 773 ESBL producers, 635 (82.1%) were found to harbor blaCTX-M genes, and of the 102 carbapenemase producers, 12 (11.8%) were found to harbor blaNDMgenes. Gene sequencing of all the 12 NDM-positive isolates revealed blaNDM-1 genes. Antibiotic resistance pattern of the ESBL-positive isolates revealed a high degree of co-resistance to noncephalosporin antibiotics such as amoxyclav, co-trimoxazole, chloramphenicol, and fluoroquinolones. Conclusion: The present study showed the increasing the prevalence of ESBL including CTX-M variety, carbapenemase production by E. coli and K. pneumoniae isolates, and spread of NDM-1 in the patients from the rural community of North India.
引用
收藏
页码:156 / 163
页数:8
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