Reported¹ cases and rates of notifiable STI²
from January 1 to December 31, 2005 and January 1 to December 31, 2004

Surveillance and Epidemiology Section,
Community Acquired Infections Division,
Centre for Infectious Disease Prevention and Control
Public Health Agency of Canada 2006

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¹ Data are preliminary and expected to change: 2005 data are expected to change more than 2004 data.

² The term STI (Sexually Transmitted Infection) is now commonly used in place of STD (Sexually Transmitted Disease). STI is more encompassing, including infections that may be asymptomatic.

³ Rate per 100,000 population based on all reported cases for 2004. Population estimates provided by Statistics Canada. (Source: Statistics Canada, Demography Division, Demographic Estimates Section, July Population Estimates, 2004 revised postcensal).

⁴ Rate per 100,000 population based on all reported cases for 2005. Population estimates provided by Statistics Canada. (Source: Statistics Canada, Demography Division, Demographic Estimates Section, July Population Estimates, 2005 preliminary postcensal).

⁵ Reported cases for Ontario in 2005 are underestimates due to transition in the provincial reporting system. Decreases are likely an artifact of reporting delay, not a true reduction in disease incidence. Canadian cases and rates for 2005 are affected.

⁶ Infectious syphilis: primary, secondary and early latent stages.

Note: Small variability may exist between data reported by the provinces/territories and the Public Health Agency of Canada. Provincial/territorial data are definitive should a discrepancy exist.

Source: Surveillance and Epidemiology Section, Community Acquired Infections Division,
Centre for Infectious Disease Prevention and Control, Public Health Agency of Canada, 2006.

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