Concordance of antibiotic resistance and ERIC-PCR DNA fingerprint pattern in Escherichia coli isolated from farmer and broiler in the same farm

The study was conducted to quantify the concordance of antibiotic resistance and ERIC-PCR DNA fingerprint pattern in Escherichia coli (E. coli) isolated from farmers and their broilers of 95 broiler farms in Songkhla province, Thailand. Four hundred and fifty-seven and 460 E. coli isolates from both...

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Veröffentlicht in:World journal of microbiology & biotechnology 2008-09, Vol.24 (9), p.1741-1746
Hauptverfasser: Na Lampang, Kannika, Chongsuvivatwong, Virasakdi, Teanpaisan, Rawee, Kitikoon, Viroj
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Sprache:eng
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Zusammenfassung:The study was conducted to quantify the concordance of antibiotic resistance and ERIC-PCR DNA fingerprint pattern in Escherichia coli (E. coli) isolated from farmers and their broilers of 95 broiler farms in Songkhla province, Thailand. Four hundred and fifty-seven and 460 E. coli isolates from both groups produced 35 patterns of antibiotics resistance. Mono-resistance to doxycycline (23.2%) in isolates from farmers and multiple resistance to doxycycline, nalidixic acid, norfloxacin and ciprofloxacin (17.8%) were the most common finding in broilers. Twenty-seven farms had 44 within-farm concordant patterns of resistance. From simulation, the frequency of concordance was significantly higher than concordance by chance alone (P < 0.05). Out of these 44 matched sets, only four had the same DNA fingerprint pattern. Concordance by DNA pattern was also not associated with phenotypic resistance. Clonal spread is therefore not a good explanation of the concordance in this population. Other mechanisms need further analysis.
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-008-9667-9