• portrait of David C Alexander
  • Assistant professor

    Max Rady College of Medicine
    Medical Microbiology and Infectious Diseases
    University of Manitoba

    Cadham Provincial Laboratory
    750 William Avenue
    Winnipeg, MB, R3C 3Y1


Cross appointments

Does not hold any cross-appointments.

Research achievements

Research summary

Dr. David Alexander uses DNA sequencing-based approaches to investigate diverse aspects of microbiology, including mechanisms of antimicrobial resistance, bacterial metabolism, and pathogen evolution. He is also interested in the development of genomics-based tools for the diagnosis and surveillance of infectious diseases.

  • Keywords

    • Infectious diseases
    • Bacterial genomics
    • Antimicrobial resistance
    • Public health
    • Genomic epidemiology
  • Research affiliations

    Scientist, Cadham Provincial Laboratory


Dr. David Alexander is an assistant professor with the Department of Medical Microbiology and Infectious Diseases and a scientist at Manitoba's Cadham Provincial Laboratory.

He was introduced to the wonderful world of microbiology as an undergraduate student at the University of Western Ontario.

As a graduate student at McGill University, he studied bacterial genetics and investigated how environmental stimuli, such as heavy metals, regulate gene expression.

Dr. Alexander's postdoctoral research focused on mycobacterial pathogens, including Mycobacterium tuberculosis and Mycobacterium avium. His interest in tuberculosis led to a position with the Public Health Ontario Laboratories.

At Public Health Ontario, Dr. Alexander started using molecular epidemiology approaches, including DNA sequencing, to monitor the transmission and evolution of bacterial and viral pathogens. 

In 2011, Dr. Alexander moved to the prairies. As a director at the Saskatchewan Disease Control Laboratory, his work involved diagnostic testing for sexually transmitted infections. 

Since 2016, Dr. Alexander has worked at Cadham Provincial Laboratory, where he assists the clinical microbiology section with the evaluation and implementation of new diagnostic tests. Dr. Alexander also supports provincial surveillance of foodborne illnesses and sexually transmitted diseases.


  • Postdoctoral Scholar, McGill University Centre for the Study of Host Resistance, Montréal, Québec (2003–2006)
  • Postdoctoral Fellow, University of Toronto, Department of Molecular Genetics, Toronto, Ontario (2001-2003)
  • PhD, McGill University, Department of Microbiology & Immunology, Montréal, Québec (1994 – 2001)
  • BSc, University of Western Ontario, London, Ontario (1990-1994)

Contact us

Medical Microbiology and Infectious Diseases
Max Rady College of Medicine
Room 543 - 745 Bannatyne Avenue
University of Manitoba (Bannatyne campus)
Winnipeg, MB R3E 0J9 Canada