Public Health Agency of Canada

This report provides an update on the epidemiology of three nationally notifiable STIs in Canada: chlamydia, gonorrhea and infectious syphilis (including congenital syphilis) using data up to 2018, by province/territory, age group and sex. In addition, updated information related to syphilis...

C. trachomatis is the most common reportable sexually transmitted infection in Canada. If not treated, C. trachomatis can spread from a local site of inoculation and lead to serious complications and/or sequelae, such as pelvic inflammatory disease (PID), ectopic pregnancy, infertility, chronic...

The Public Health Agency of Canada collects information on reported cases of sexually transmitted infections; chlamydia, gonorrhea and infectious syphilis through the Canadian Notifiable Diseases Surveillance System (CNDSS).

Sexually transmitted infections, commonly called STI for short, are infections you can get if you have vaginal, oral or anal sex or intimate skin-to-skin contact with someone.

The Canada Communicable Disease Report is a bilingual, open-access, peer-reviewed journal on the prevention and control of emerging and persistent infectious diseases. 

The Canada Communicable Disease Report is a bilingual, open-access, peer-reviewed journal on the prevention and control of emerging and persistent infectious diseases. 

Notifiable Diseases Online presents information based on data from the Canadian Notifiable Disease Surveillance System (CNDSS). Nationally notifiable diseases are infectious diseases that have been identified by the federal government and provinces and territories as priorities for monitoring and...

Displays a bar chart showing either the number or rate of reported cases for a single disease or multiple diseases (up to 6) for any selected year from 1991 up to 2016 and is displayed by age group. The source data table, limitations of the data and descriptions of the selected notifiable...

Displays a stacked bar chart showing either the number or rate of reported cases of a single disease in any selected year (from 1991 up to 2016). Each bar represents a specific age group and is stacked to show sex breakdown within the age group. The source data table, limitations of the data and...

Displays a line chart where a single or multiple notifiable diseases (up to 6) may be selected within any selected year range from 1924 up to 2016, where data are available. The chart can represent either the number or rate of reported cases. The source data table, limitations of the data and...

Displays a line chart where multiple notifiable diseases (up to 6) may be selected within any selected year range from 1991 up to 2016 and by selecting either the number or rate of reported cases. The chart can be further broken down by age group and sex. The source data table, limitations of the...