Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method

Abstract Background Campylobacter is a leading cause of foodborne gasteroenteritis worldwide. Antimicrobial susceptibility testing for Campylobacter spp. is not routinely performed by most clinical laboratories. However, the emergence of resistant isolates strengthens the importance of antimicrobial...

Full description

Bibliographic Details
Main Authors: Maya Azrad, Linda Tkhawkho, Natalia Isakovich, Orna Nitzan, Avi Peretz
Format: Article
Language:English
Published: BMC 2018-05-01
Series:Annals of Clinical Microbiology and Antimicrobials
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12941-018-0275-8
_version_ 1811226228030439424
author Maya Azrad
Linda Tkhawkho
Natalia Isakovich
Orna Nitzan
Avi Peretz
author_facet Maya Azrad
Linda Tkhawkho
Natalia Isakovich
Orna Nitzan
Avi Peretz
author_sort Maya Azrad
collection DOAJ
description Abstract Background Campylobacter is a leading cause of foodborne gasteroenteritis worldwide. Antimicrobial susceptibility testing for Campylobacter spp. is not routinely performed by most clinical laboratories. However, the emergence of resistant isolates strengthens the importance of antimicrobial susceptibility testing and the critical need for epidemiologic surveillance. The aim of this study was to compare the efficacy of Etest and Sensititre kit (a broth microdilution method) as methods for susceptibility tests and the critical need for epidemiologic surveillance. The aim of this study was to compare the efficacy of Etest and Sensititre kit (a broth microdilution method) as methods for susceptibility testing of Campylobacter spp. to tetracycline, erythromycin, and ciprofloxacin. Methods Sixty-six Campylobacter isolates were collected from feces samples and subjected to susceptibility testing by Etest and Sensititre, a broth microdilution kit for tetracycline, erythromycin, and ciprofloxacin. Minimal inhibitory concentration (MIC) results of each method were determined and compared. Results Similar MIC interpretations for tetracycline, erythromycin, and ciprofloxacin were found in 97%, 98.5%, and 100% of the isolates, respectively, indicating a good level of agreement between Etest and Sensititre (p < 0.0001); additionally, the correlation between the two methods was highly significant for the three tested antibiotics (p < 0.0001). Conclusions Both the broth microdilution and the Etest are reliable and convenient methods for testing antimicrobial susceptibility of Campylobacter spp. The Sensititre kit has the advantages of high availability and the automation.
first_indexed 2024-04-12T09:21:21Z
format Article
id doaj.art-40bccf9fd52f4968b42ecacd73331eca
institution Directory Open Access Journal
issn 1476-0711
language English
last_indexed 2024-04-12T09:21:21Z
publishDate 2018-05-01
publisher BMC
record_format Article
series Annals of Clinical Microbiology and Antimicrobials
spelling doaj.art-40bccf9fd52f4968b42ecacd73331eca2022-12-22T03:38:38ZengBMCAnnals of Clinical Microbiology and Antimicrobials1476-07112018-05-011711510.1186/s12941-018-0275-8Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution methodMaya Azrad0Linda Tkhawkho1Natalia Isakovich2Orna Nitzan3Avi Peretz4Clinical Microbiology Laboratory, Baruch Padeh Medical Center, PoriyaClinical Microbiology Laboratory, Baruch Padeh Medical Center, PoriyaClinical Microbiology Laboratory, Baruch Padeh Medical Center, PoriyaThe Azrieli Faculty of Medicine, Bar Ilan UniversityClinical Microbiology Laboratory, Baruch Padeh Medical Center, PoriyaAbstract Background Campylobacter is a leading cause of foodborne gasteroenteritis worldwide. Antimicrobial susceptibility testing for Campylobacter spp. is not routinely performed by most clinical laboratories. However, the emergence of resistant isolates strengthens the importance of antimicrobial susceptibility testing and the critical need for epidemiologic surveillance. The aim of this study was to compare the efficacy of Etest and Sensititre kit (a broth microdilution method) as methods for susceptibility tests and the critical need for epidemiologic surveillance. The aim of this study was to compare the efficacy of Etest and Sensititre kit (a broth microdilution method) as methods for susceptibility testing of Campylobacter spp. to tetracycline, erythromycin, and ciprofloxacin. Methods Sixty-six Campylobacter isolates were collected from feces samples and subjected to susceptibility testing by Etest and Sensititre, a broth microdilution kit for tetracycline, erythromycin, and ciprofloxacin. Minimal inhibitory concentration (MIC) results of each method were determined and compared. Results Similar MIC interpretations for tetracycline, erythromycin, and ciprofloxacin were found in 97%, 98.5%, and 100% of the isolates, respectively, indicating a good level of agreement between Etest and Sensititre (p < 0.0001); additionally, the correlation between the two methods was highly significant for the three tested antibiotics (p < 0.0001). Conclusions Both the broth microdilution and the Etest are reliable and convenient methods for testing antimicrobial susceptibility of Campylobacter spp. The Sensititre kit has the advantages of high availability and the automation.http://link.springer.com/article/10.1186/s12941-018-0275-8EtestSensititre kitCampylobacter jejuniCampylobacter coli
spellingShingle Maya Azrad
Linda Tkhawkho
Natalia Isakovich
Orna Nitzan
Avi Peretz
Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method
Annals of Clinical Microbiology and Antimicrobials
Etest
Sensititre kit
Campylobacter jejuni
Campylobacter coli
title Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method
title_full Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method
title_fullStr Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method
title_full_unstemmed Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method
title_short Antimicrobial susceptibility of Campylobacter jejuni and Campylobacter coli: comparison between Etest and a broth dilution method
title_sort antimicrobial susceptibility of campylobacter jejuni and campylobacter coli comparison between etest and a broth dilution method
topic Etest
Sensititre kit
Campylobacter jejuni
Campylobacter coli
url http://link.springer.com/article/10.1186/s12941-018-0275-8
work_keys_str_mv AT mayaazrad antimicrobialsusceptibilityofcampylobacterjejuniandcampylobactercolicomparisonbetweenetestandabrothdilutionmethod
AT lindatkhawkho antimicrobialsusceptibilityofcampylobacterjejuniandcampylobactercolicomparisonbetweenetestandabrothdilutionmethod
AT nataliaisakovich antimicrobialsusceptibilityofcampylobacterjejuniandcampylobactercolicomparisonbetweenetestandabrothdilutionmethod
AT ornanitzan antimicrobialsusceptibilityofcampylobacterjejuniandcampylobactercolicomparisonbetweenetestandabrothdilutionmethod
AT aviperetz antimicrobialsusceptibilityofcampylobacterjejuniandcampylobactercolicomparisonbetweenetestandabrothdilutionmethod