Infectious syphilis, 2019


Volume 46–10, October 1, 2020: Laboratory Biosafety


Infectious Syphilis in Canada, 2019

Infographic: Infectious Syphilis in Canada, 2019

Text description: Infographic

Number and rates of infectious syphilis in Canada, 2015–2019

This graph displays the rate of infectious syphilis per 100,000 population on the left vertical axis and the number of infectious syphilis cases on the right vertical axis in Canada, for each year between 2015 and 2019 (calendar years are shown on the horizontal axis).

Table 1: Number and rates of infectious syphilis in Canada (line and bar chart)
Year Rate per 100,000 population Number of infectious syphilis cases
2015 8.9 3,199
2016 10.7 3,870
2017 11.1 4,083
2018 17.1 6,371
2019 21.4 8,066

8,066Footnote * cases of infectious syphilis were reported in 2019

Since 2015, rates among females have increased by more than 890% while rates among males increased by 91%

Between 2018 and 2019, the highest relative increase in rates has been observed among 15–24 year olds

Provincial and territorial rates, 2019Footnote

This map displays the rates of reported infectious syphilis per 100,000 population by province and territory in 2019.

Table 2: Provincial and territorial rates of infectious syphilis, 2019
Province or territory Rate per 100,000 population
British Columbia 17.3
Alberta 45.5
Saskatchewan 32.9
Manitoba 71.7
Ontario 16.2
Quebec 13.7
New Brunswick No data available
Nova Scotia 5.9
Prince Edward Island No data available
Newfoundland and Labrador 6.3
Yukon territories 4.9
Northern territories 106.9
Nunavut 259.8
Canada 21.4

Small case counts in jurisdictions with small populations can result in large rates; as a result, these rates should be interpreted with caution.

Proportion of cases per subpopulation, 2019Footnote

This pie chart shows the proportion of cases for each subpopulation reported; heterosexual men, gay, bisexual and other men that have sex with men (gbMSM), men (other), pregnant women, women (non pregnant) and women (other) in 2019.

Table 3: Proportion of cases of infectious syphilis per subpopulation (pie chart)
Subpopulation Proportion (%)
gbMSM 42
Heterosexual men 26
Men (other) 5
Pregnant women 3
Women (other) 20
Other (women) 4

There were 45 confirmed cases of congenital syphilis in 2019 (connection with the proportion of pregnant women in the pie chart above).

An increasing number of reports show that substance use is associated with syphilis.

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