TY  - JOUR
T1  - Characterization of Antimicrobial Resistance in <I>Escherichia coli </I>Isolates from Retail Meats and Eggs in China<SUP>
AU - Wang, Xiaoquan AU - Zhong, Lei AU - Wang, Yanhong AU - Gao, Haigang 
JO  - Journal of Animal and Veterinary Advances
VL  - 13
IS  - 19
SP  - 1114
EP  - 1119
PY  - 2014
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2014.1114.1119
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2014.1114.1119
KW  - antimicrobial resistance
KW  -retail food
KW  -Escherichia coli
KW  -resistance gene
KW  -humans
AB  - The  aim  of  this  study  was  to  characterize  the  antimicrobial  resistance  and  mechanism  of streptomycin-resistance in <I>Escherichia coli</I> isolated from retail meats and eggs during 2012-2013. A total of 76 <I>E. coli</I> isolates were assessed for antimicrobial susceptibility to 14 anti-microbial agents by Disk Diffusion Method. Resistant strains were screened by PCR for streptomycin resistance genes. Each strain was found resistant to at least one antimicrobial and 68 of 76 isolates (89.5%) showed multidrug resistance phenotypes to at least three classes of antimicrobials. The most prevalent resistances were to streptomycin (92.1%), followed by tetracycline (88.2%), ampicillin (81.6%), gentamicin (72.4%), nalidixic acid (69.7%) and sulfadimidine (63.2%). For each streptomycin-resistance gene, the predominant resistance genes were: <I>aadA1</I> (64.3%), followed by <I>strA/B</I> (51.4%) and <I>aadA2</I> (41.4%). However, the level of antimicrobial resistance and dissemination of resistance genes differed in <I>E. coli</I> strains with different sources.<B>
ER  -