PMID: 29769880Feb 7, 2014Paper

Pertussis Surveillance Trends in British Columbia, Canada, over a 20-year Period: 1993-2013

Canada Communicable Disease Report = Relevé Des Maladies Transmissibles Au Canada
Catharine ChambersD Bowering

Abstract

To provide a surveillance update on overall and age-related pertussis trends in British Columbia (BC), Canada, spanning the 20-year period from 1993-2013. Provincial surveillance data for confirmed pertussis cases were extracted from January 1, 1993 to October 31, 2013. Annual and age-specific incidence rates were derived using provincial and regional population estimates. BC experienced substantial pertussis epidemics in the late 1990s and early 2000s with incidence ranging from 20 to 40 per 100,000 overall and peaking in pre-teens aged 10-13 years at >200 per 100,000 during the epidemic of 2000. Overall incidence dropped to historical lows ranging from 1 to 6 per 100,000 between 2005 and 2011. This low-level activity was followed by resurgence in 2012 driven by outbreaks in Lower Mainland regions of BC with overall provincial incidence reaching 10 per 100,000. Age-specific incidence in 2012 was highest among infants <1 year old (64 per 100,000) and children 12-13 years old (56-57 per 100,000), with a shift in the age distribution away from preschool-aged children toward pre-teens and young teens evident since 2000. Adult incidence remained <10 per 100,000 throughout the study period and was 5 per 100,000 in 2012. Year-to-date...Continue Reading

Citations

Aug 21, 2019·Epidemiology and Infection·R SolanoM I Fernández-San-Martín
Oct 21, 2020·CMAJ Open·Bahaa Abu-RayaUNKNOWN for members of the Canadian Immunization Monitoring Program, ACTive (IMPACT)

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