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17846

Enterococcal Infections and Antimicrobial Resistance in a Tertiary Care Hospital, Eastern India

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Infectious diseases

Abstract

Background and study aim: During last two decades, there has been a world-wide trend in increasing occurrence of entero-coccal infections in the hospitals. The aim of present study was to determine the spectrum of enterococcal infections, speciesprevalence, antimicrobial resistance and characteristics of vancomycin resistant enterococci (VRE) in a tertiary care hospital, Eastern India.   Patients and Methods: Between January 2013 and July 2014, 152 Enterococcus species were obtained from clinical samples. Enterococci were identified using standard biochemical tests. Antimicrobial susceptibility was tested by Kirby-Bauer disk diffusion according to Clinical & Laboratory Standards Institute (CLSI) guidelines.VRE agar base was used to screen VRE isolates. Minimum inhibitory concentration (MIC) values of VRE isolates were determined using Epsilometer-test. VRE isolates were also examined by PCR to detect vanA gene. Results: From 1602 clinical samples, 961 (60%) were culture positive and 152(15.8%) enterococcal isolates were obtained. Most common species isolated was E. faecalis (63.8%) followed by E. faecium (35.5%). Majority of enterococcal infections were detected from ICUs and surgical wards and clinically presented as UTIs. Disk diffusion method showed 67.1% were resistant to penicillin, 61.2% ampicillin, 58.5% ciprofloxacin, 46.7% high-level gentamicin, 42. 8% high-level streptomycin, 7.9% teicoplanin and none to linezolid. Twenty (13.2%) enterococcal isolates were vancomycin resistant in VRE screen and disk diffusion method. Epsilometer-test of VRE isolates showed 8 (40%) isolates were resistant and 9 (45%) were intermediately resistant. From 20 VRE isolates, six showed VanA and two VanB phenotypes and all six VanA phenotypes had vanA gene cluster. Conclusion: More accurate and reliable MIC determination tests should be performedin all suspected VRE isolates. Confirmatory PCR is required for identifying resistant gene cluster.

DOI

10.21608/aeji.2015.17846

Keywords

enterococci, E. faecalis, E. faecium, VRE, vanA gene

Authors

First Name

Llalli

Last Name

Sahu

MiddleName

S

Affiliation

Microbiology Department, S.C.B Medical College and Hospital, Utkal University, Cuttack, Odisha, India.

Email

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City

-

Orcid

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First Name

Muktikesh

Last Name

Dash

MiddleName

-

Affiliation

Microbiology Department, S.C.B Medical College and Hospital, Utkal University, Cuttack, Odisha, India.

Email

mukti_mic@yahoo.co.in

City

-

Orcid

-

First Name

Bimoch

Last Name

Paty

MiddleName

P

Affiliation

Microbiology Department, S.C.B Medical College and Hospital, Utkal University, Cuttack, Odisha, India.

Email

-

City

-

Orcid

-

First Name

Gopal

Last Name

Purohit

MiddleName

K

Affiliation

Biotechnology School, KIIT University, Bhubaneswar, Odisha, India.

Email

-

City

-

Orcid

-

First Name

Nirupama

Last Name

Chayan

MiddleName

-

Affiliation

Microbiology Department, S.C.B Medical College and Hospital, Utkal University, Cuttack, Odisha, India.

Email

-

City

-

Orcid

-

Volume

5

Article Issue

4

Related Issue

3730

Issue Date

2015-12-01

Receive Date

2015-12-02

Publish Date

2015-12-24

Page Start

255

Page End

264

Print ISSN

2090-7613

Online ISSN

2090-7184

Link

https://aeji.journals.ekb.eg/article_17846.html

Detail API

https://aeji.journals.ekb.eg/service?article_code=17846

Order

6

Type

Original Article

Type Code

616

Publication Type

Journal

Publication Title

Afro-Egyptian Journal of Infectious and Endemic Diseases

Publication Link

https://aeji.journals.ekb.eg/

MainTitle

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Details

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Article

Created At

22 Jan 2023