Frank Møller Aarestrup

Summary

Affiliation: National Food Institute
Country: Denmark

Publications

  1. pmc Estimating variation within the genes and inferring the phylogeny of 186 sequenced diverse Escherichia coli genomes
    Rolf S Kaas
    DTU Food, The Technical University of Denmark, Kgs Lyngby, Denmark
    BMC Genomics 13:577. 2012
  2. pmc snpTree--a web-server to identify and construct SNP trees from whole genome sequence data
    Pimlapas Leekitcharoenphon
    National Food Institute, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
    BMC Genomics 13:S6. 2012
  3. pmc Genomic variation in Salmonella enterica core genes for epidemiological typing
    Pimlapas Leekitcharoenphon
    National Food Institute, Building 204, The Technical University of Denmark, 2800 Kgs Lyngby, Denmark
    BMC Genomics 13:88. 2012
  4. pmc Occurrence of antimicrobial resistance among bacterial pathogens and indicator bacteria in pigs in different European countries from year 2002 - 2004: the ARBAO-II study
    Rene S Hendriksen
    National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Acta Vet Scand 50:19. 2008
  5. pmc Prevalence of antimicrobial resistance among bacterial pathogens isolated from cattle in different European countries: 2002-2004
    Rene S Hendriksen
    National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790, Copenhagen V, Denmark
    Acta Vet Scand 50:28. 2008
  6. doi request reprint Antimicrobial resistance in swine production
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Anim Health Res Rev 9:135-48. 2008
  7. doi request reprint Evaluation of eight different cephalosporins for detection of cephalosporin resistance in Salmonella enterica and Escherichia coli
    Frank M Aarestrup
    WHO Collaborating Centre for Antimicrobial Resistance in Food borne Pathogens and EU Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Technical University of Denmark, Copenhagen, Denmark
    Microb Drug Resist 16:253-61. 2010
  8. doi request reprint Resistance in bacteria of the food chain: epidemiology and control strategies
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Copenhagen V, Denmark
    Expert Rev Anti Infect Ther 6:733-50. 2008
  9. doi request reprint Susceptibility of Clostridium difficile toward antimicrobial agents used as feed additives for food animals
    Frank M Aarestrup
    EU Reference Laboratory for Antimicrobial Resistance, WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens, National Food Institute, Technical University of Denmark, Lyngby, Denmark
    Microb Drug Resist 17:125-7. 2011
  10. doi request reprint Evaluation of ceftiofur and cefquinome for phenotypic detection of methicillin resistance in Staphylococcus aureus using disk diffusion testing and MIC-determinations
    Frank M Aarestrup
    Community Reference Laboratory for Antimicrobial Resistance and WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens, National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 140:176-9. 2010

Collaborators

Detail Information

Publications48

  1. pmc Estimating variation within the genes and inferring the phylogeny of 186 sequenced diverse Escherichia coli genomes
    Rolf S Kaas
    DTU Food, The Technical University of Denmark, Kgs Lyngby, Denmark
    BMC Genomics 13:577. 2012
    ..This knowledge will be useful for creating better phylogenies, for determination of molecular clocks and for improved typing techniques...
  2. pmc snpTree--a web-server to identify and construct SNP trees from whole genome sequence data
    Pimlapas Leekitcharoenphon
    National Food Institute, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
    BMC Genomics 13:S6. 2012
    ..Furthermore, all current methods require bioinformatic skills. Thus, we lack a standard and simple automatic tool to determine SNPs and construct phylogenetic tree from WGS data...
  3. pmc Genomic variation in Salmonella enterica core genes for epidemiological typing
    Pimlapas Leekitcharoenphon
    National Food Institute, Building 204, The Technical University of Denmark, 2800 Kgs Lyngby, Denmark
    BMC Genomics 13:88. 2012
    ..The core genes--the genes that are conserved in all (or most) members of a genus or species--are potentially good candidates for investigating genomic variation in phylogeny and epidemiology...
  4. pmc Occurrence of antimicrobial resistance among bacterial pathogens and indicator bacteria in pigs in different European countries from year 2002 - 2004: the ARBAO-II study
    Rene S Hendriksen
    National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Acta Vet Scand 50:19. 2008
    ..In this report the first data on the occurrence of antimicrobial resistance among bacteria causing infections in pigs are reported...
  5. pmc Prevalence of antimicrobial resistance among bacterial pathogens isolated from cattle in different European countries: 2002-2004
    Rene S Hendriksen
    National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790, Copenhagen V, Denmark
    Acta Vet Scand 50:28. 2008
    ..Available summary data of the susceptibility testing of the bacterial pathogens from the different laboratories were collected...
  6. doi request reprint Antimicrobial resistance in swine production
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Anim Health Res Rev 9:135-48. 2008
    ....
  7. doi request reprint Evaluation of eight different cephalosporins for detection of cephalosporin resistance in Salmonella enterica and Escherichia coli
    Frank M Aarestrup
    WHO Collaborating Centre for Antimicrobial Resistance in Food borne Pathogens and EU Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Technical University of Denmark, Copenhagen, Denmark
    Microb Drug Resist 16:253-61. 2010
    ..Ceftriaxone may be the recommended substance for monitoring because of some ability in separating ampC hyper-producing E. coli from ESBL and plasmidic AmpC isolates...
  8. doi request reprint Resistance in bacteria of the food chain: epidemiology and control strategies
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Copenhagen V, Denmark
    Expert Rev Anti Infect Ther 6:733-50. 2008
    ....
  9. doi request reprint Susceptibility of Clostridium difficile toward antimicrobial agents used as feed additives for food animals
    Frank M Aarestrup
    EU Reference Laboratory for Antimicrobial Resistance, WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens, National Food Institute, Technical University of Denmark, Lyngby, Denmark
    Microb Drug Resist 17:125-7. 2011
    ..difficile. This indicates that these old compounds may be useful for the treatment of C. difficile infections in man and perhaps for other bacterial causes of diarrhea...
  10. doi request reprint Evaluation of ceftiofur and cefquinome for phenotypic detection of methicillin resistance in Staphylococcus aureus using disk diffusion testing and MIC-determinations
    Frank M Aarestrup
    Community Reference Laboratory for Antimicrobial Resistance and WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens, National Food Institute, Technical University of Denmark, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 140:176-9. 2010
    ..Testing 98 mecA negative and 71 mecA positive S. aureus we compared the usefulness of ceftiofur and cefquinome to cefoxitin, for detection of MRSA and found that these cephalosporins are not as efficient as cefoxitin...
  11. doi request reprint Changes in the use of antimicrobials and the effects on productivity of swine farms in Denmark
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Kemitorvet, Building 204, DK 2800, Kongens Lyngby, Denmark
    Am J Vet Res 71:726-33. 2010
    ..To evaluate changes in antimicrobial consumption and productivity by Danish swine farms during 1992 to 2008...
  12. doi request reprint Decreased susceptibility to zinc chloride is associated with methicillin resistant Staphylococcus aureus CC398 in Danish swine
    Frank Møller Aarestrup
    National Food Institute, Technical University of Denmark, Copenhagen V, Denmark
    Vet Microbiol 142:455-7. 2010
    ..This provides biological evidence to suggest that the use of zinc compounds may be partly implicated in the emergence of some MRSA clones among swine in Denmark...
  13. doi request reprint Prevalence of quinolone resistance mechanisms and associations to minimum inhibitory concentrations in quinolone-resistant Escherichia coli isolated from humans and swine in Denmark
    Lina Maria Cavaco
    Research Group for Antimicrobial Resistance and Molecular Epidemiology, Department for Microbiology and Risk Assessment, National Food Institute, Technical University of Denmark, Copenhagen V, Denmark
    Microb Drug Resist 14:163-9. 2008
    ..This mechanism was complemented by efflux mechanisms in most porcine isolates. Transferable resistance by target protection or enzymatic modification was less common (10%) and restricted to human isolates...
  14. ncbi request reprint Association between phage types and antimicrobial resistance among bovine Staphylococcus aureus from 10 countries
    Jan Vintov
    Danish Veterinary Institute, Bulowsvej 27, DK 1790, Copenhagen, Denmark
    Vet Microbiol 95:133-47. 2003
    ..In addition, these findings could indicate that the use of penicillin in the bovine environment has selected for specific types of S. aureus in countries with a high frequency of resistance...
  15. doi request reprint Ten years of antimicrobial susceptibility testing of Salmonella from Danish pig farms
    Hanne Dorthe Emborg
    National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK 2860 Søborg, Denmark
    J Antimicrob Chemother 62:360-3. 2008
    ..This study analysed the trends in antimicrobial resistance in Salmonella serovars and phage types from pigs in Denmark from 1997 to 2006...
  16. doi request reprint Escherichia coli isolates from broiler chicken meat, broiler chickens, pork, and pigs share phylogroups and antimicrobial resistance with community-dwelling humans and patients with urinary tract infection
    Lotte Jakobsen
    Statens Serum Institute, Copenhagen, Denmark
    Foodborne Pathog Dis 7:537-47. 2010
    ..Thus, our study provides support for the hypothesis that a food animal and meat reservoir might exist for UTI-causing E. coli...
  17. ncbi request reprint Prevalence of beta-lactamases among ampicillin-resistant Escherichia coli and Salmonella isolated from food animals in Denmark
    Inger Olesen
    Danish Institute for Food and Veterinary Research, DK 1790 Copenhagen V, Denmark
    Microb Drug Resist 10:334-40. 2004
    ..According to MIC determinations, these novel enzymes do not possess activity against extended-spectrum beta-lactams...
  18. pmc Copper resistance in Enterococcus faecium, mediated by the tcrB gene, is selected by supplementation of pig feed with copper sulfate
    Henrik Hasman
    Danish Institute for Food and Veterinary Research, Bulowsvej 27, 1790 Copenhagen V, Denmark
    Appl Environ Microbiol 72:5784-9. 2006
    ..faecium in the animal group fed the high level of copper. Finally, we identify the tcr genes in the enterococcal species E. mundtii, E. casseliflavus, and E. gallinarum for the first time...
  19. ncbi request reprint Trends in antimicrobial susceptibility in relation to antimicrobial usage and presence of resistance genes in Staphylococcus hyicus isolated from exudative epidermitis in pigs
    Frank Møller Aarestrup
    Danish Veterinary Institute, 27 Bülowsvej, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 89:83-94. 2002
    ..The presence of erm(B) was confirmed by hybridization to plasmid profiles in all 13 PCR-positive isolates. Of 52 tetracycline resistant isolates examined, two contained tet(L), 38 tet(K) and 12 both tet(K) and tet(L)...
  20. pmc Incidence of high-level evernimicin resistance in Enterococcus faecium among food animals and humans
    Frank Møller Aarestrup
    Danish Veterinary Institute, DK 1790 Copenhagen V, Denmark
    Antimicrob Agents Chemother 46:3088-90. 2002
    ..This study demonstrated a low incidence of high-level evernimicin resistance mediated by the emtA gene in different E. faecium isolates of animal and human origin...
  21. ncbi request reprint Antimicrobial susceptibility of Haemophilus parasuis and Histophilus somni from pigs and cattle in Denmark
    Frank M Aarestrup
    Danish Institute for Food and Veterinary Research, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 101:143-6. 2004
    ..This study showed that Danish isolates of H. parasuis and H. somni in general are fully susceptible to antimicrobial agents currently used for treatment of infections with these pathogens...
  22. ncbi request reprint WHO global salm-surv external quality assurance system (EQAS): an important step toward improving the quality of Salmonella serotyping and antimicrobial susceptibility testing worldwide
    Anne Petersen
    Danish Veterinary Institute, DK 1790 Copenhagen V, Denmark
    Microb Drug Resist 8:345-53. 2002
    ..step toward improving the quality of Salmonella serotyping and antimicrobial susceptibility testing worldwide, and improving the current reliability and comparability of Salmonella surveillance data obtained from different countries,..
  23. ncbi request reprint Susceptibility of Escherichia coli and Enterococcus faecium isolated from pigs and broiler chickens to tetracycline degradation products and distribution of tetracycline resistance determinants in E. coli from food animals
    Gitte Sengeløv
    Danish Veterinary Institute, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 95:91-101. 2003
    ..In general both the tetracycline resistant and susceptible E. faecium were more susceptible to the compounds tested than E. coli...
  24. ncbi request reprint Phage types and antimicrobial resistance among Danish bovine Staphylococcus aureus isolates since the 1950s
    Jan Vintov
    Danish Veterinary Institute, Bulowsvej 27, DK 1790 V Copenhagen, Denmark
    Vet Microbiol 97:63-72. 2003
    ..aureus population related to bovine mastitis has remained relatively unchanged over the last 50 years. The occurrence of antimicrobial resistance has remained low in Denmark in comparison to other countries in Europe...
  25. pmc Danish integrated antimicrobial resistance monitoring and research program
    Anette M Hammerum
    National Center for Antimicrobials and Infection Control, Statens Serum Institut, Copenhagen, Denmark
    Emerg Infect Dis 13:1632-9. 2007
    ....
  26. ncbi request reprint External quality assurance system for antibiotic resistance in bacteria of animal origin in Europe (ARBAO-II), 2003
    Danilo M A Lo Fo Wong
    Danish Institute for Food and Veterinary Research, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 115:128-39. 2006
    ..This clearly shows the need for continuous harmonisation of methodologies within the EU...
  27. ncbi request reprint Susceptibility of different bacterial species isolated from food animals to copper sulphate, zinc chloride and antimicrobial substances used for disinfection
    Frank M Aarestrup
    Danish Veterinary Institute, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Vet Microbiol 100:83-9. 2004
    ....
  28. pmc Antimicrobial resistance among enterococci from pigs in three European countries
    Frank Møller Aarestrup
    Danish Veterinary Institute, DK 1790 Copenhagen V, Denmark
    Appl Environ Microbiol 68:4127-9. 2002
    ..A recently identified transferable copper resistance gene was found in all copper-resistant isolates from the different countries...
  29. ncbi request reprint Streptogramin resistance among Enterococcus faecium isolated from production animals in Denmark in 1997
    Lars Bogø Jensen
    Section for Antimicrobial Resistance and Environmental Microbiology, Danish Veterinary Institute, DK 1790 Copenhagen V, Denmark
    Microb Drug Resist 8:369-74. 2002
    ..None of the isolates containing the streptogramin A gene vat(D) was resistant to glycopeptide, whereas isolates containing the vat(E) gene had a lower prevalence to glycopeptide resistance than the streptogramin-sensitive isolates...
  30. pmc WHO Global Salm-Surv external quality assurance system for serotyping of Salmonella isolates from 2000 to 2007
    Rene S Hendriksen
    National Food Institute, WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens, and Community Reference Laboratory for Antimicrobial Resistance, Technical University of Denmark, Copenhagen, Denmark
    J Clin Microbiol 47:2729-36. 2009
    ..Future training efforts should be aimed at enhancing the ability to detect the phase two flagellar antigen and at disseminating information on where to purchase high-quality antisera...
  31. doi request reprint Emergence of multidrug-resistant salmonella concord infections in Europe and the United States in children adopted from Ethiopia, 2003-2007
    Rene S Hendriksen
    WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens and EU Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Technical University of Denmark, Copenhagen V, Denmark
    Pediatr Infect Dis J 28:814-8. 2009
    ..We interviewed patients, characterized the isolates, and gathered information about adoptions from Ethiopia to assess public health implications...
  32. doi request reprint Risk factors and epidemiology of the ten most common Salmonella serovars from patients in Thailand: 2002-2007
    Rene S Hendriksen
    World Health Organization WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens and EU Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Technical University of Denmark, DK 1790 Copenhagen V, Denmark
    Foodborne Pathog Dis 6:1009-19. 2009
    ..Stanley, S. Corvallis, and S. Choleraesuis) and determine interventions to reduce the burden of disease from these serovars...
  33. pmc Relationship between copper, glycopeptide, and macrolide resistance among Enterococcus faecium strains isolated from pigs in Denmark between 1997 and 2003
    Henrik Hasman
    Danish Institute for Food and Veterinary Research, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    Antimicrob Agents Chemother 49:454-6. 2005
    ..The tcrB gene was located closely upstream of the Tn1546 element. However, the continued use of copper sulfate has not been able to maintain high levels of macrolide and glycopeptide resistance...
  34. pmc tcrB, a gene conferring transferable copper resistance in Enterococcus faecium: occurrence, transferability, and linkage to macrolide and glycopeptide resistance
    Henrik Hasman
    Danish Veterinary Institute, DK 1790 Copenhagen V, Denmark
    Antimicrob Agents Chemother 46:1410-6. 2002
    ..The frequent occurrence of this new copper resistance gene in isolates from pigs, where copper sulfate is being used in large amounts as feed additive, suggests that the use of copper has selected for resistance...
  35. ncbi request reprint The attribution of human infections with antimicrobial resistant Salmonella bacteria in Denmark to sources of animal origin
    Tine Hald
    National Food Institute, Technical University of Denmark, Copenhagen, Denmark
    Foodborne Pathog Dis 4:313-26. 2007
    ....
  36. doi request reprint The effect of pH and storage on copper speciation and bacterial growth in complex growth media
    Henrik Hasman
    DTU National Food institute, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    J Microbiol Methods 78:20-4. 2009
    ..Therefore, the latter method is to be recommended, when working with bacterial copper testing...
  37. ncbi request reprint Nucleoside analogues are activated by bacterial deoxyribonucleoside kinases in a species-specific manner
    Michael P B Sandrini
    BioCentrum DTU, Technical University of Denmark, DK 2800 Kgs Lyngby, Denmark
    J Antimicrob Chemother 60:510-20. 2007
    ..To investigate the bactericidal activity of antiviral and anticancer nucleoside analogues against a variety of pathogenic bacteria and characterize the activating enzymes, deoxyribonucleoside kinases (dNKs)...
  38. ncbi request reprint Antimicrobial susceptibility of Listeria monocytogenes from food products
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Copenhagen, Denmark
    Foodborne Pathog Dis 4:216-21. 2007
    ..The MICs for triclosan was high compared to other gram-positive bacteria, suggesting that triclosan might not be useful against L. monocytogenes if incorporated in materials in the food industry...
  39. pmc International spread of multidrug-resistant Salmonella Schwarzengrund in food products
    Frank M Aarestrup
    National Food Institute, Technical University of Denmark, Copenhagen, Denmark
    Emerg Infect Dis 13:726-31. 2007
    ..This study suggests spread of multidrug-resistant S. Schwarzengrund from chickens to persons in Thailand, and from imported Thai food products to persons in Denmark and the United States...
  40. doi request reprint Antimicrobial resistance and molecular epidemiology of Salmonella Rissen from animals, food products, and patients in Thailand and Denmark
    Rene S Hendriksen
    WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens and EU Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Technical University of Denmark, Copenhagen, Denmark
    Foodborne Pathog Dis 5:605-19. 2008
    ..The outcome of this study might be used as a supplement for future Salmonella Rissen investigations and outbreak detection...
  41. ncbi request reprint Heterologous expression of glycopeptide resistance vanHAX gene clusters from soil bacteria in Enterococcus faecalis
    Henrik Hasman
    Danish Institute for Food and Veterinary Research, Copenhagen V, Denmark
    J Antimicrob Chemother 57:648-53. 2006
    ..The aim of the study was to determine whether glycopeptide resistance gene clusters from soil bacteria could be heterologously expressed in Enterococcus faecalis and adapt to the new host following exposure to vancomycin...
  42. pmc Results of use of WHO Global Salm-Surv external quality assurance system for antimicrobial susceptibility testing of Salmonella isolates from 2000 to 2007
    Rene S Hendriksen
    WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens and Community Reference Laboratory for Antimicrobial Resistance, National Food Institute, Copenhagen, Denmark
    J Clin Microbiol 47:79-85. 2009
    ....
  43. pmc Regulation of the erm(C) gene in Staphylococci from reservoir with different usage of macrolides
    Lars B Jensen
    Danish Institute for Food and Veterinary Research, Copenhagen, Denmark
    Acta Vet Scand 46:163-6. 2005
  44. pmc Pigs as source of methicillin-resistant Staphylococcus aureus CC398 infections in humans, Denmark
    Hannah C Lewis
    Statens Serum Institut, Copenhagen, Denmark
    Emerg Infect Dis 14:1383-9. 2008
    ..4, 95% CI 1.4-94.8). A total of 23 of 50 pigs on 4 of 5 farms were positive for CC398. Our results, corroborated by microbiologic testing, demonstrate that pigs are a source of CC398 in Denmark...
  45. ncbi request reprint Antimicrobial susceptibility and occurrence of resistance genes among Salmonella enterica serovar Weltevreden from different countries
    Frank M Aarestrup
    WHO Collaborating Centre for Antimicrobial Resistance in Bacteria from Food animals and Food of Animal Origin, Danish Veterinary Institute, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    J Antimicrob Chemother 52:715-8. 2003
    ....
  46. ncbi request reprint Diversity and stability of plasmids from glycopeptide-resistant Enterococcus faecium (GRE) isolated from pigs in Denmark
    Henrik Hasman
    Danish Institute for Food and Veterinary Research, Copenhagen, Denmark
    Microb Drug Resist 11:178-84. 2005
    ..Here, the plasmid proved far more stable in its original host environment than in the new host...
  47. ncbi request reprint dfrA25, a novel trimethoprim resistance gene from Salmonella Agona isolated from a human urine sample in Brazil
    Yvonne Agersø
    WHO Collaborating Centre for Antimicrobial Resistance in Foodborne Pathogens, Danish Institute for Food and Veterinary Research, Bulowsvej 27, DK 1790 Copenhagen V, Denmark
    J Antimicrob Chemother 58:1044-7. 2006
    ..To describe a novel trimethoprim resistance gene, designated dfrA25, which was detected as a gene cassette within a class 1 integron in Salmonella Agona...
  48. pmc Molecular characterization and antimicrobial susceptibility testing of Escherichia coli isolates from patients with urinary tract infections in 20 Chinese hospitals
    Xiaoli Cao
    Department of General Surgery, Peking University First Hospital, Beijing 100034, China
    J Clin Microbiol 49:2496-501. 2011
    ..coli isolates, indicating the presence of a large reservoir in the community and a long-term spread of cephalosporin resistance in China...