W. David Colby IV, MSc, MD, FRCPC - Infectious Disease

Dr. Colby is a consultant for the Infectious Diseases Service at London Health Sciences Centre. He also is the director of the University Hospital Travel Medicine and Tropical Diseases Service in London, Ontario.

Dr. Colby is a well-known researcher who has been the principal or secondary investigator of several clinical trials. He was the regional coordinator for a nationally organized surveillance project. He also has been involved in many research groups, including the Vaccine and Virus Host Interactions Group (VVHIG), the Barer/Stoddart Report Task Force, and the Canadian ciprofloxacin study group.

Dr. Colby is an accomplished speaker who has made numerous presentations at conferences in Canada, France, and the United States. In addition, he has had TV and radio appearances covering a variety of medical topics, including infectious diseases and antibiotic resistance.

Since 1990, Dr. Colby has been a fellowship examiner for the Canadian Society of Laboratory Technologists. He has served on many hospital and university committees and he has received many awards, including Honourary Class President of the University of Western Ontario Medicine, classes of 1996, 2001, and 2005.

Dr. Colby has served as reviewer for Clinical and Investigative Medicine, University of Western Ontario Medical Journal, and the Canadian Medical Association Journal.

Board Certifications

Fellow, Medical Microbiology, Royal College of Physicians of Canada

Healthwise Knowledgebase Topics Reviewed

Human Immunodeficiency Virus (HIV) Infection
E. coli Infection


MD: University of Toronto, Toronto, ON, 1984
Internship: Rotating, St. Joseph's Hospital, London, ON, 1984–1985
Residency: Medical Microbiology, University Hospital, London, ON, 1986–1989
Fellowship: Cancer Research, Department of Pathology, University of Western Ontario, London, ON (Sponsored by the Cancer Research Society), 1985–1986

Academic Appointments

Associate Professor: Department of Microbiology and Immunology and the Department of Medicine, University of Western Ontario, London, ON, 2001–present
Assistant Professor: School of Dentistry, University of Western Ontario, London, ON, 1999–present

Hospital Affiliations

London Health Sciences Centre

Professional Affiliations

Ontario and Canadian Medical Association
Canadian Association of Medical Microbiologists
American Society for Microbiology
American Society of Tropical Medicine and Hygiene
Canadian Association for Clinical Microbiology and Infectious Disease
European Society of Clinical Microbiology and Infectious Diseases
London and District Academy of Medicine
International Society for Infectious Diseases
Association of Medical Microbiologists of Ontario
University of Western Ontario Clinical Teachers Association
Canadian Infectious Diseases Society
International Society for Chemotherapy
International Society of Travel Medicine
Wilderness Medical Society

Selected Publications

  1. Wilson RW, Steingrube VA, Brown BA, Blacklock Z, Jost KC Jr, McNabb A, Colby WD, Biehle J, Gibson JL, Wallace RJ (1997). Recognition of a nocardia transvalensis complex by resistance to aminoglycosides. Journal of Clinical Microbiology, 35: 2235–2242.
  2. Shuttleworth R, Behme RJ, McNabb A, Colby WD (1997). Human isolates of staphylococcus caprae: Association with bone and joint infections. Journal of Clinical Microbiology, 35: 2537–2541.
  3. McNabb A, Shuttleworth R, Behme R, Colby WD (1997). Fatty acid characterization of the rapidly growing pathogenic aerobic actinomycetes as a means of identification. Journal of Clinical Microbiology, 35: 1361–1368.
  4. Colby WD (1998). Antibiotic Resistance and Pharmacokinetics: A Short Tutorial. Saint-Laurent, Quebec: Pharmaceutical Products Division.
  5. Blondeau JM, Ysdvhuk Y, Colby WD, the Canadian Ciprofloxacin Study Group. Canadian ciprofloxacin susceptibility study form 15 medical centers. Antimicrobial agents and Chemotherapy, 41: 1729–1732.
  6. Colby WD (2006). Optimizing Antimicrobial Therapy—A Pharmacometric Approach. Port Huron, MI: North American Compendiums.

Financial Disclosure

This reviewer reported no financial conflicts.

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