• 1
    Coque TM, Baquero F, Canton R. Increasing prevalence of ESBL-producing Enterobacteriaceae in Europe. Euro Surveill 2008; 13: 19044.
  • 2
    Damborg P, Nielsen SS, Guardabassi L. Escherichia coli shedding patterns in humans and dogs: insights into within-household transmission of phylotypes associated with urinary tract infections. Epidemiol Infect 2009; 137: 14571464.
  • 3
    Yan JJ, Hong CY, Ko WC et al. Dissemination of blaCMY-2 among Escherichia coli isolates from food animals, retail ground meats, and humans in southern Taiwan. Antimicrob Agents Chemother 2004; 48: 13531356.
  • 4
    Ben Slama K, Jouini A, Ben Sallem R et al. Prevalence of broad-spectrum cephalosporin-resistant Escherichia coli isolates in food samples in Tunisia, and characterization of integrons and antimicrobial resistance mechanisms implicated. Int J Food Microbiol 2010; 137: 281286.
  • 5
    Escudero E, Vinue L, Teshager T, Torres C, Moreno MA. Resistance mechanisms and farm-level distribution of fecal Escherichia coli isolates resistant to extended-spectrum cephalosporins in pigs in Spain. Res Vet Sci 2010; 88: 8387.
  • 6
    Costa D, Vinue L, Poeta P et al. Prevalence of extended-spectrum beta-lactamase-producing Escherichia coli isolates in faecal samples of broilers. Vet Microbiol 2009; 138: 339344.
  • 7
    Bergenholtz RD, Jørgensen MS, Hansen LH, Jensen LB, Hasman H. Characterization of genetic determinants of extended-spectrum cephalosporinases (ESCs) in Escherichia coli isolates from Danish and imported poultry meat. J Antimicrob Chemother 2009; 64: 207209.
  • 8
    Jensen LB, Hasman H, Agersø Y, Emborg HD, Aarestrup FM. First description of an oxyimino-cephalosporin-resistant, ESBL-carrying Escherichia coli isolated from meat sold in Denmark. J Antimicrob Chemother 2006; 57: 793794.
  • 9
    Kader AA, Kumar A, Kamath KA. Fecal carriage of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae in patients and asymptomatic healthy individuals. Infect Control Hosp Epidemiol 2007; 28: 11141116.
  • 10
    Valverde A, Coque TM, Sanchez-Moreno MP, Rollan A, Baquero F, Canton R. Dramatic increase in prevalence of fecal carriage of extended-spectrum beta-lactamase-producing Enterobacteriaceae during nonoutbreak situations in Spain. J Clin Microbiol 2004; 42: 47694775.
  • 11
    Rodriguez-Bano J, Lopez-Cerero L, Navarro MD, Diaz DA, Pascual A. Faecal carriage of extended-spectrum beta-lactamase-producing Escherichia coli: prevalence, risk factors and molecular epidemiology. J Antimicrob Chemother 2008; 62: 11421149.
  • 12
    Vinue L, Saenz Y, Martinez S et al. Prevalence and diversity of extended-spectrum beta-lactamases in faecal Escherichia coli isolates from healthy humans in Spain. Clin Microbiol Infect 2009; 15: 954957.
  • 13
    Perez-Perez FJ, Hanson ND. Detection of plasmid-mediated AmpC beta-lactamase genes in clinical isolates by using multiplex PCR. J Clin Microbiol 2002; 40: 21532162.
  • 14
    Ribot EM, Fair MA, Gautom R et al. Standardization of pulsed-field gel electrophoresis protocols for the subtyping of Escherichia coli 0157:H7, Salmonella, and Shigella for PulseNet. Foodborne Pathdog Dis 2006; 3: 5967.
  • 15
    Trobos M, Lester CH, Olsen JE, Frimodt-Møller N, Hammerum AM. Natural transfer of sulphonamide and ampicillin resistance between Escherichia coli residing in the human intestine. J Antimicrob Chemother 2009; 63: 8086.
  • 16
    Clermont O, Bonacorsi S, Bingen E. Rapid and simple determination of the Escherichia coli phylogenetic group. Appl Environ Microbiol 2000; 66: 45554558.
  • 17
    Gordon DM, Clermont O, Tolley H, Denamur E. Assigning Escherichia coli strains to phylogenetic groups: multi-locus sequence typing versus the PCR triplex method. Environ Microbiol 2008; 10: 24842496.
  • 18
    Johnson JR, Kuskowski MA, Smith K, O’Bryan TT, Tatini S. Antimicrobial-resistant and extraintestinal pathogenic Escherichia coli in retail foods. J Infect Dis 2005; 191: 10401049.