Infectious Diseases

Infectious Diseases are diseases caused by biological agents, which can be transmitted to others, rather than by genetic, physical or chemical agents. This definition includes disease caused by viruses, bacteria, parasites, fungi, and prions.  An infection however, is not synonymous with an infectious disease, as an infection may not cause important clinical symptoms or impair host function.

The Division of Infectious Diseases at St. Paul's Hospital is comprised of a faculty of 7 clinicians and clinician scientists.  The members are responsible for the clinical, research, and administrative teaching program of the division and have a strong reputation for excellence in these areas. Although the major focus is comprehensive HIV/AIDS care, the program also provides general infectious disease consultation.

Contact Information
Division of Infectious Diseases
1081 Burrard Street
Vancouver, B.C., V6Z 1Y6
Telephone: 604-806-8640 

Dr. Val Montessori, Division Head & Clinical Associate Professor

Dr. Julio Montaner, University Killam Professor
Dr. Peter Phillips, Clinical Professor
Dr. Valentina Montessori, Clinical Associate Professor
Dr. Melanie Murray, Clinical Associate Professor
Dr. Natasha Press, Clinical Associate Professor
Dr. Quynh-Dao Dinh, Clinical Assistant Professor
Dr. Mary Kestler, Clinical Assistant Professor
Dr. T. C. Yang, Clinical Instructor

Dr. Mark Hull, Associate Member
Dr. Victor Leung, Associate Member 

The clinical service plays a major role in both the inpatient and outpatient management of patients with HIV/AIDS. Despite major advances in treatment for HIV infection, the number of patients requiring inpatient care has not declined in recent years due to the epidemic among injection drug users. St. Paul's Hospital continues to be a national and international leader in AIDS care, and the ID Division members make up an integral component of the AIDS Program. 


The Infectious Diseases group is actively involved in Undergraduate and Postgraduate educational programs. The venues for Infectious Diseases teaching include: bedside teaching, outpatient clinics, weekly city-wide case conference, academic half day, and AIDS care rounds which are available to medical students, medical residents, and residents in the Infectious Diseases and Medical Microbiology training programs. 

Didactic teaching sessions are provided to various postgraduate training programs including emergency medicine, critical care, hematology, family practice, surgery, radiology, and Medi-580. 


The current areas of active clinical research are:

  • HIV-related immune reconstitution syndromes (IRS).Observational studies include clinical, radiologic, and pathologic studies of non-tuberculous mycobacterial IRS. Other pathogens causing IRS presentations include Cryptococcus and human herpes virus 8.
  • Clinical trials of systemic antifungal drugs.
  • HIV and Hepatitis C co-infection with particular interest in histologic changes associated with antiretroviral therapy and Hepatitis C and management of adverse effects of Hepatitis C therapy in co-infected patients.
  • HIV and Hepatitis B co-infection.
  • Human papillomavirus related anal dysplasia in the HIV+ population.
  • Access and use of health resources in the HIV+ injection drug using population.
  • Clinical trials of antiretroviral therapies.

For more information on Infectious Diseases, please explore these useful websites: 

BC Centre for Excellence in HIV/AIDS 
The UBC Division of Infectious Diseases