A service provided by the BC Centre for Disease Control

About STIs

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The BC Centre for Disease Control tracks the number of cases of reportable STIs over time to see if there are increases or decreases in infection rates. In 2014, there were 13,348 cases of Chlamydia and 1,802 cases of gonorrhea diagnosed in BC. Chlamydia and gonorrhea cases have been increasing since the late 1990s. This increase may be partly explained by improved tests for chlamydia and gonorrhea and by the fact that more people have been getting tested.

BC is currently experiencing a syphilis epidemic, as is much of North America. The number of syphilis cases is higher now than what we would expect (for example, based on numbers before 2000). There were 549 cases of syphilis diagnosed in 2014, which is similar to 2013, but syphilis has continued to rise since then. 

Since the initial height of the HIV epidemic in BC in the 80’s and early 90’s, the number of HIV cases leveled off and more recently has been decreasing.

The following graphs show each of the reportable STIs with adjusted scales to highlight the trends over the past 20 year period.


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HIV, chlamydia, gonorrhea, syphilis, case, rate, trends
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