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Evaluation of Occurrence and Characterization of Carbapenemases among Enterobacteriaceae Isolated by the SENTRY Antimicrobial Surveillance Program Worldwide (2000-2004)

Evaluation of Occurrence and Characterization of Carbapenemases among Enterobacteriaceae Isolated by the SENTRY Antimicrobial Surveillance Program Worldwide (2000-2004), Lead author: Sader HS, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

A Novel Mobile CR Element, CR6, is Associated with Carriage of DHFR Genes in Cotrimoxazole Susceptible Stenotrophomonas maltophilia Isolates

A Novel Mobile CR Element, CR6, is Associated with Carriage of DHFR Genes in Cotrimoxazole Susceptible Stenotrophomonas maltophilia Isolates, Lead author: Walsh T, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Emergence and Epidemiology of Fluoroquinolone-Resistant S. pneumoniae Isolates from Italy: Report from the SENTRY Antimicrobial Surveillance Program (2001-2004)

Emergence and Epidemiology of Fluoroquinolone-Resistant S. pneumoniae Isolates from Italy: Report from the SENTRY Antimicrobial Surveillance Program (2001-2004), Lead author: Deshpande LM, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Eight Year Summary of Community-Acquired S. pneumoniae Infections by the SENTRY Antimicrobial Surveillance Program (1997-2004): More Good News Than Bad!

Eight Year Summary of Community-Acquired S. pneumoniae Infections by the SENTRY Antimicrobial Surveillance Program (1997-2004): More Good News Than Bad!, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Characterization of Enterococcal Isolates with Linezolid MIC at 4 ug/ml Collected as Part of the ZAAPS Oxazolidinone Surveillance Program (2002-2004)

Characterization of Enterococcal Isolates with Linezolid MIC at 4 ug/ml Collected as Part of the ZAAPS Oxazolidinone Surveillance Program (2002-2004), Lead author: Sader HS, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Oxazolidinone Susceptibility Patterns in 2004: Report from the Worldwide Zyvox Annual Appraisal of Potency and Spectrum (ZAAPS) Program

Oxazolidinone Susceptibility Patterns in 2004: Report from the Worldwide Zyvox Annual Appraisal of Potency and Spectrum (ZAAPS) Program, Lead author: Ross JE, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Frequency of Occurrence and Antimicrobial Susceptibility (S) of Bacterial Isolates Causing Bloodstream Infections Worldwide: Report from 8 Years of the SENTRY Antimicrobial Surveillance Program (1997-2004)

Frequency of Occurrence and Antimicrobial Susceptibility (S) of Bacterial Isolates Causing Bloodstream Infections Worldwide: Report from 8 Years of the SENTRY Antimicrobial Surveillance Program (1997-2004), Lead author: Sader HS, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Dissemination of blaKPC-2/3 among Clinical Strains of Enterobacteriaceae Isolated in New York City and other Medical Centers: Report from the MYSTIC Program (2005)

Dissemination of blaKPC-2/3 among Clinical Strains of Enterobacteriaceae Isolated in New York City and other Medical Centers: Report from the MYSTIC Program (2005), Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Dissemination of blavim among Clonally Unrelated Clinical Strains Isolated in an USA Medical Center

Dissemination of blavim among Clonally Unrelated Clinical Strains Isolated in an USA Medical Center, Lead author: Sader HS, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Emergence of Imp and Vim Metallo-Beta-Lactamase Producing P. aeruginosa Strains in Mexico: Report from the Sentry Antimicrobial Surveillance Program

Emergence of Imp and Vim Metallo-Beta-Lactamase Producing P. aeruginosa Strains in Mexico: Report from the Sentry Antimicrobial Surveillance Program, Lead author: Sader HS, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Evaluation of Daptomycin (DAP), Telavancin (TLV), Teicoplanin (TEI), and Vancomycin (VAN) Activity in the Presence of Albumin or Serum

Evaluation of Daptomycin (DAP), Telavancin (TLV), Teicoplanin (TEI), and Vancomycin (VAN) Activity in the Presence of Albumin or Serum, Lead author: Tsuji, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

In Vitro Susceptibility Testing Guidelines for Ceftobiprole (BAL9141) Using CLSI Disk Diffusion and Broth Microdilution MIC Methods

In Vitro Susceptibility Testing Guidelines for Ceftobiprole (BAL9141) Using CLSI Disk Diffusion and Broth Microdilution MIC Methods, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Accuracy for Antibacterial and Antifungal Susceptibility Tests: Report from the College of American Pathologists (CAP) Microbiology Proficiency Survey Program for 2004 – 2005

Accuracy for Antibacterial and Antifungal Susceptibility Tests: Report from the College of American Pathologists (CAP) Microbiology Proficiency Survey Program for 2004 – 2005, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Susceptibility Testing Accuracy of an Enterobacteriaceae Population Enriched for Ctx-M-Type ESBL-Producing Isolates (China): Intermethod Analysis for Nine Important Parenteral ß-Lactams

Susceptibility Testing Accuracy of an Enterobacteriaceae Population Enriched for Ctx-M-Type ESBL-Producing Isolates (China): Intermethod Analysis for Nine Important Parenteral ß-Lactams, Lead author: Pottumarthy S, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Importance of Medium, Calcium Concentration, Time of Incubation, and Inoculum for Testing Polymyxin B (PB) against Acinetobacter spp. (ASP) and Pseudomonas aeruginosa (PSA)

Importance of Medium, Calcium Concentration, Time of Incubation, and Inoculum for Testing Polymyxin B (PB) against Acinetobacter spp. (ASP) and Pseudomonas aeruginosa (PSA), Lead author: Mendes RE, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Validation of Etest Colistin (CO) and Polymyxin B (PO) against the CLSI Reference Methods using 413 Strains with a Wide Susceptibility Range

Validation of Etest Colistin (CO) and Polymyxin B (PO) against the CLSI Reference Methods using 413 Strains with a Wide Susceptibility Range, Lead author: Bolmstrom A, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Wild-Type MIC Distributions for Campylobacter spp. Tested against Nine Antimicrobials using Recently Approved CLSI Broth Microdilution (BMD) Methods (2005)

Wild-Type MIC Distributions for Campylobacter spp. Tested against Nine Antimicrobials using Recently Approved CLSI Broth Microdilution (BMD) Methods (2005), Lead author: Fritsche TR, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Faropenem Activity Tested against Neisseria gonorrhoeae Including Contemporary Antimicrobial Resistance Phenotypes

Faropenem Activity Tested against Neisseria gonorrhoeae Including Contemporary Antimicrobial Resistance Phenotypes, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Tigecycline (GAR-936) Activity against 850 Bloodstream Infection (BSI) Isolates of Viridans Group Streptococci

Tigecycline (GAR-936) Activity against 850 Bloodstream Infection (BSI) Isolates of Viridans Group Streptococci, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Antimicrobial Spectrum and Potency of Cefepime Combined with Sulbactam when Tested with 4 Candidate Ratio or Fixed Concentration Formulations

Antimicrobial Spectrum and Potency of Cefepime Combined with Sulbactam when Tested with 4 Candidate Ratio or Fixed Concentration Formulations, Lead author: Sader HS, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Activity of a Novel Cationic Steroid Antimicrobial (CSA-13) Targeting Aerobic and Facultative Gram-negative Bacilli, Gram-positive Anaerobes and Select Agent Surrogate Strains

Activity of a Novel Cationic Steroid Antimicrobial (CSA-13) Targeting Aerobic and Facultative Gram-negative Bacilli, Gram-positive Anaerobes and Select Agent Surrogate Strains, Lead author: Savage, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Activity of a Novel Cationic Steroid Antimicrobial (CSA-13) Against Staphylococcus aureus and Bacterial Species Associated with Infections in Cystic Fibrosis Patients

Activity of a Novel Cationic Steroid Antimicrobial (CSA-13) Against Staphylococcus aureus and Bacterial Species Associated with Infections in Cystic Fibrosis Patients, Lead author: Savage, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Antimicrobial Activity of BP-102, A Novel Carbacephem, Tested Against H. influenzae, M. catarrhalis and Various Gram-Positive Cocci

Antimicrobial Activity of BP-102, A Novel Carbacephem, Tested Against H. influenzae, M. catarrhalis and Various Gram-Positive Cocci, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Activity of VIC-105555 (VIC), a Novel Lincosamide, Tested Against Gram-Positive Bacteria and Anaerobes

Activity of VIC-105555 (VIC), a Novel Lincosamide, Tested Against Gram-Positive Bacteria and Anaerobes, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Comparative Antimicrobial Activity and Spectrum of Retapamulin (RE) Against Drug-Resistant Organisms

Comparative Antimicrobial Activity and Spectrum of Retapamulin (RE) Against Drug-Resistant Organisms, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Quality Control Guidelines for Testing Retapamulin by CLSI Broth Microdilution and Disk Diffusion Methods

Quality Control Guidelines for Testing Retapamulin by CLSI Broth Microdilution and Disk Diffusion Methods, Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Assessment of Pathogen Frequency and Resistance (R) Patterns Among Pediatric Patients (PP): Report from the SENTRY Antimicrobial Surveillance Program (2004) on Three Continents

Assessment of Pathogen Frequency and Resistance (R) Patterns Among Pediatric Patients (PP): Report from the SENTRY Antimicrobial Surveillance Program (2004) on Three Continents, Lead author: Fedler K, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Evaluation of Clinical Outcome among Patients with ESBL-Producing Enterobacteriaceae (ETB) Treated with Cephalosporin (CEPH) Monotherapy

Evaluation of Clinical Outcome among Patients with ESBL-Producing Enterobacteriaceae (ETB) Treated with Cephalosporin (CEPH) Monotherapy, Lead author: Craig WA, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Geographic Antimicrobial Resistance Variability among Bacterial Pathogens Causing Nosocomial Pneumonia in North America (NA): An Eight-Year Analysis from the SENTRY Antimicrobial Surveillance Program, 1997-2004

Geographic Antimicrobial Resistance Variability among Bacterial Pathogens Causing Nosocomial Pneumonia in North America (NA): An Eight-Year Analysis from the SENTRY Antimicrobial Surveillance Program, 1997-2004, Lead author: Biedenbach DJ, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Activity of Gemifloxacin Tested against Historical and Contemporary Isolates of Neisseria gonorrhoeae (NG) Including Fluoroquinolone-Resistant Strains (QRNG)

Activity of Gemifloxacin Tested against Historical and Contemporary Isolates of Neisseria gonorrhoeae (NG) Including Fluoroquinolone-Resistant Strains (QRNG), Lead author: Jones RN, presented at 45th annual Interscience Conference of Antimicrobial Agents and Chemotherapy (ICAAC), December 16 – 19, 2005, Washington, DC

Contemporary Occurrence of Mobile AmpC-Type ß-Lactamase Resistances (R) in E. coli (EC): Report from the SENTRY Antimicrobial Surveillance Program (USA, 2004)

Contemporary Occurrence of Mobile AmpC-Type ß-Lactamase Resistances (R) in E. coli (EC): Report from the SENTRY Antimicrobial Surveillance Program (USA, 2004), Lead author: Jones RN, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Antimicrobial Activity of Broad Spectrum Parenteral Cephalosporins Tested against Bacterial Isolates from Pediatric Patients: Report from the SENTRY Antimicrobial Surveillance Program

Antimicrobial Activity of Broad Spectrum Parenteral Cephalosporins Tested against Bacterial Isolates from Pediatric Patients: Report from the SENTRY Antimicrobial Surveillance Program, Lead author: Sader HS, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Geographic Occurrence and Resistance Patterns among Pathogens Isolated from Skin and Soft Tissue Infections (SSTI): A Report from the SENTRY Antimicrobial Surveillance Program (2004)

Geographic Occurrence and Resistance Patterns among Pathogens Isolated from Skin and Soft Tissue Infections (SSTI): A Report from the SENTRY Antimicrobial Surveillance Program (2004), Lead author: Fritsche TR, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Antimicrobial Activity of Alternative Broad-Spectrum Agents against Imipenem-Non-Susceptible Gram-Negative Bacilli: Report from the USA MYSTIC Programme, 1999 – 2004

Antimicrobial Activity of Alternative Broad-Spectrum Agents against Imipenem-Non-Susceptible Gram-Negative Bacilli: Report from the USA MYSTIC Programme, 1999 – 2004, Lead author: Fritsche TR, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Update on Daptomycin Antimicrobial Activity When Tested against Clinical Strains from North American Medical Centers (2004)

Update on Daptomycin Antimicrobial Activity When Tested against Clinical Strains from North American Medical Centers (2004), Lead author: Sader HS, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Susceptibility Patterns for Amoxicillin/Clavulanate Tests Simulating Licensed Formulations and Pharmacokinetic Relationships: Does the 2:1 Ratio MIC Accurately Reflect Activity against Beta-Lactamase Producing H. influenzae and M. catarrhalis

Susceptibility Patterns for Amoxicillin/Clavulanate Tests Simulating Licensed Formulations and Pharmacokinetic Relationships: Does the 2:1 Ratio MIC Accurately Reflect Activity against Beta-Lactamase Producing H. influenzae and M. catarrhalis, Lead author: Fritsche TR, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Re-Evaluation of the Bactericidal Activities and the Correlation between Disk Diffusion and MIC Methods for Testing Daptomycin and Vancomycin against S. aureus with Decreased Susceptibility (S) to Gylcopeptides

Re-Evaluation of the Bactericidal Activities and the Correlation between Disk Diffusion and MIC Methods for Testing Daptomycin and Vancomycin against S. aureus with Decreased Susceptibility (S) to Gylcopeptides, Lead author: Sader HS, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Antimicrobial Activities of Cefepime and Piperacillin/Tazobactam against E. coli and Klebsiella spp. with ESBL-Phenotype Collected Worldwide

Antimicrobial Activities of Cefepime and Piperacillin/Tazobactam against E. coli and Klebsiella spp. with ESBL-Phenotype Collected Worldwide, Lead author: Sader HS, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Potential Role for Triple Antibiotic Ointment (TAO) Against Mupirocin-Resistant Staphylococci: A USA and Australian Clinical Isolate Sample

Potential Role for Triple Antibiotic Ointment (TAO) Against Mupirocin-Resistant Staphylococci: A USA and Australian Clinical Isolate Sample, Lead author: Jones RN, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Daptomycin Resistance and Vancomycin Intermediate S. aureus in a Patient with Prolonged Antibiotic Therapy

Daptomycin Resistance and Vancomycin Intermediate S. aureus in a Patient with Prolonged Antibiotic Therapy, Lead author: Mariani P, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Global Assessment of the Polymyxin B Activity Tested against 55,151 Clinical Strains of Gram-Negative Bacilli: Report from the SENTRY Antimicrobial Surveillance Program (2001-2004)

Global Assessment of the Polymyxin B Activity Tested against 55,151 Clinical Strains of Gram-Negative Bacilli: Report from the SENTRY Antimicrobial Surveillance Program (2001-2004), Lead author: Jones RN, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Spectrum and Potency of Dalbavancin Tested against 3,322 Gram-Positive Cocci Isolated in the USA Surveillance Program (2004)

Spectrum and Potency of Dalbavancin Tested against 3,322 Gram-Positive Cocci Isolated in the USA Surveillance Program (2004), Lead author: Jones RN, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Activity of Tigecycline (TIG) Tested Against Non-Fermentative Gram-Negative Bacilli (NFB), Including Imipenem-Non-Susceptible (IMP-NS) Strains, and ESBL-producing Enterobacteriaceae (ENT)

Activity of Tigecycline (TIG) Tested Against Non-Fermentative Gram-Negative Bacilli (NFB), Including Imipenem-Non-Susceptible (IMP-NS) Strains, and ESBL-producing Enterobacteriaceae (ENT), Lead author: Fritsche TR, presented at 43rd annual Infectious Diseases Society of America (IDSA), October 6 – 9, 2005, San Francisco, California

Persistent Occurrence of Clonally Related Multi-Drug Resistant Acinetobacter Spp. Isolates Within the MYSTIC Programme Medical Centers (USA, 1999 – 2004)

Persistent Occurrence of Clonally Related Multi-Drug Resistant Acinetobacter Spp. Isolates Within the MYSTIC Programme Medical Centers (USA, 1999 – 2004), Lead author: Rhomberg PR, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA

Potential Options for Parental Therapy of Community-Acquired Infections Caused by Levofloxacin-Resistant Streptococcus pneumoniae: Report from the SENTRY Antimicrobial Surveillance Program

Potential Options for Parental Therapy of Community-Acquired Infections Caused by Levofloxacin-Resistant Streptococcus pneumoniae: Report from the SENTRY Antimicrobial Surveillance Program, Lead author: Fritsche TR, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA

Comparative Antimicrobial Spectrum and Potency of Meropenem Tested Against Enterobacteriaceae and Non-Fermentative Gram-Negative Bacilli: Report from the 2004 MYSTIC Program (USA)

Comparative Antimicrobial Spectrum and Potency of Meropenem Tested Against Enterobacteriaceae and Non-Fermentative Gram-Negative Bacilli: Report from the 2004 MYSTIC Program (USA), Lead author: Jones RN, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA

Comprehensive In Vitro Evaluation of Cefepime Combined with Aztreonam or Ampicilin/Sulbactam Against Multi-Drug Resistant Pseudomonas aeruginosa and Acinetobacter spp.

Comprehensive In Vitro Evaluation of Cefepime Combined with Aztreonam or Ampicilin/Sulbactam Against Multi-Drug Resistant Pseudomonas aeruginosa and Acinetobacter spp., Lead author: Sader HS, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA

Antimicrobial Activity of the Novel Peptide Deformylase Inhibitor LBM415 (NVP PDF-713) Against an International Collection of Respiratory Tract, Skin and Soft Tissue Pathogens (2004)

Antimicrobial Activity of the Novel Peptide Deformylase Inhibitor LBM415 (NVP PDF-713) Against an International Collection of Respiratory Tract, Skin and Soft Tissue Pathogens (2004), Lead author: Watters A, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA

Influence of Errors Caused by Automated Systems in the Antimicrobial Susceptibility Rates of Pseudomonas aeruginosa against Selected Beta-Lactam Antimicrobials

Influence of Errors Caused by Automated Systems in the Antimicrobial Susceptibility Rates of Pseudomonas aeruginosa against Selected Beta-Lactam Antimicrobials, Lead author: Sader HS, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA

In Vitro Evaluation of Dalbavancin in Combination with Other Classes of Antimicrobial Agents

In Vitro Evaluation of Dalbavancin in Combination with Other Classes of Antimicrobial Agents, Lead author: Johnson DM, presented at 105th annual American Society for Microbiology General Meeting (ASM), June 5 – 9, 2005, Atlanta, GA