Abstract:
:The assessment of antimicrobial resistance among commensal bacteria is an indicator of the spread of antimicrobial resistance. Rapid screening methods for detection of antimicrobial-resistant faecal Escherichia coli directly on MacConkey plates have been successfully adopted but suffer from lack of standardisation. The purpose of this study was to evaluate a direct plating method (DPM) for detection of antimicrobial-resistant faecal E. coli and to compare it with a conventional method. Faecal samples were collected from 71 healthy children from Peru and Bolivia. In the DPM, a faecal swab was directly plated onto a MacConkey agar plate and antimicrobial disks were applied onto the seeded plate. Raw data were obtained by direct reading of the plate and were subjected to confirmatory analysis. Good concordance between the DPM and a conventional method was observed in detecting carriage of resistant E. coli, with a higher sensitivity for the DPM. Analysis of the results allowed interpretive criteria to be defined for DPM raw data. The DPM showed good sensitivity and specificity at very low cost (ten times cheaper than the conventional method) to investigate the faecal carriage of drug-resistant E. coli. It may represent a useful tool to conduct large-scale resistance surveillance studies and to monitor resistance control programmes cost effectively, particularly in low-resource countries.
journal_name
Trans R Soc Trop Med Hygauthors
Bartoloni A,Benedetti M,Pallecchi L,Larsson M,Mantella A,Strohmeyer M,Bartalesi F,Fernandez C,Guzman E,Vallejos Y,Villagran AL,Guerra H,Gotuzzo E,Paradisi F,Falkenberg T,Rossolini GM,Kronvall Gdoi
10.1016/j.trstmh.2005.06.027subject
Has Abstractpub_date
2006-02-01 00:00:00pages
119-25issue
2eissn
0035-9203issn
1878-3503pii
S0035-9203(05)00231-2journal_volume
100pub_type
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