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Sexually Transmitted Infections and Blood-borne Infections Report

Executive Summary:

gloved hand holding vial of bloodSexually transmitted infections (STIs) and Blood-borne infections (BBIs) remain the most common diseases reported in Ontario, and remain a significant burden on our healthcare system.

This report assesses the burden of STIs and BBIs in the Health Unit's area, and supports the provincial requirement to monitor STIs and BBIs with a goal of identifying trends and priority populations. This report also helps identify high risk behaviours and highlights the work of the Health Unit to address sexual health among residents.


  • Chlamydia is the number one reported STI in the Health Unit's area - 93 per cent of all STIs reported between 2000-2014 were Chlamydia.

  • 65 per cent of Chlamydia cases reported to the Health Unit between 2005 - 2014 were females.

  • The 15 to 24 year old age group had the highest Chlamydia incidence rate in the Health Unit's area; the average rate of incidence in individuals 20 to 24 years of age was 1.4 times greater than the average incidence in individuals 15 to 19 years of age.

  • Gonorrhea rates increased in both males and females, similar to the trend observed provincially.

  • A lower incidence of Infectious Syphilis was reported in the Health Unit's area. Between 2005-2014, all reported cases of infectious syphilis were males.

  • Overall rates for Hepatitis C declined between 2005-2014, however the age standardization rate for HKPR was higher than the provincial rate. Incarceration has been identified as a risk factor for BBIs, and the multiple correctional facilities within the HKPR area contribute to the increase in the local rate compared to the province.

Full Report:

The full STI and BBI report is available upon request. To receive a copy, email the Epidemiology and Evaluation Services Team at

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