HIV/AIDS in Vancouver, British Columbia: a growing epidemic

doi:10.1186/1477-7517-6-5

Harm Reduction Journal

Volume 6

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McInnes CW
Druyts E
Harvard SS
Gilbert M
Tyndall MW
Lima VD
Wood E
Montaner JS
Hogg RS

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McInnes CW
Druyts E
Harvard SS
Gilbert M
Tyndall MW
Lima VD
Wood E
Montaner JS
Hogg RS
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Brief report

HIV/AIDS in Vancouver, British Columbia: a growing epidemic

Colin W McInnes¹^,2 , Eric Druyts¹ , Stephanie S Harvard¹ , Mark Gilbert³ , Mark W Tyndall¹^,2 , Viviane D Lima¹^,2 , Evan Wood¹^,2 , Julio SG Montaner¹^,2 and Robert S Hogg¹^,4

¹British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608-1081 Burrard Street, Vancouver, British Columbia, V6Z 1Y6, Canada

²Faculty of Medicine, University of British Columbia, 3300-950 West 10th Avenue, Vancouver, British Columbia, V5Z 4E3, Canada

³Division of STI/HIV Prevention and Control, British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, British Columbia, V5Z 4R4, Canada

⁴Faculty of Health Sciences, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A 1S6, Canada

author email corresponding author email

Harm Reduction Journal 2009, 6:5doi:10.1186/1477-7517-6-5


Published:	5 March 2009

Abstract

The prevalence of HIV in Vancouver, British Columbia was subject to two distinct periods of rapid increase. The first occurred in the 1980s due to high incidence among men who have sex with men (MSM), and the second occurred in the 1990s due to high incidence among injection drug users (IDU). The purpose of this study was to estimate and model the trends in HIV prevalence in Vancouver from 1980 to 2006. HIV prevalence data were entered into the UNAIDS/WHO Estimation and Projection Package (EPP) where prevalence trends were estimated by fitting an epidemiological model to the data. Epidemic curves were fit for IDU, MSM, street-based female sex trade workers (FSW), and the general population. Using EPP, these curves were then aggregated to produce a model of Vancouver's overall HIV prevalence. Of the 505 000 people over the age of 15 that reside in Vancouver, 6108 (ranging from 4979 to 7237) were living with HIV in the year 2006, giving an overall prevalence of 1.21 percent (ranging from 0.99 to 1.43 percent). The subgroups of IDU and MSM account for the greatest proportion of HIV infections. Our model estimates that the prevalence of HIV in Vancouver is greater than one percent, roughly 6 times higher than Canada's national prevalence. These results suggest that HIV infection is having a relatively large impact in Vancouver and that evidence-based prevention and harm reduction strategies should be expanded.