Journal
PEDIATRIC INFECTIOUS DISEASE JOURNAL
Volume 30, Issue 7, Pages 566-569Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/INF.0b013e31820e8638
Keywords
meningococcus; conjugate vaccine; effectiveness; evaluation
Categories
Funding
- Quebec Ministry of Health and Social Services
- Glaxo-Smith-Kline
- Novartis
- Sanofi Pasteur
- Merck
- Pfizer
- Chiron (now Novartis)
Ask authors/readers for more resources
Background: A mass immunization campaign was implemented in 2001 to control a serogroup C meningococcal disease outbreak, and a newly licensed serogroup C meningococcal conjugate vaccine (C-MCV) was used. In 2002, 1 C-MCV dose was routinely offered to children 12 months of age. Objective: To assess the epidemiologic effect of the campaign and C-MCV effectiveness during a 7-year period according to age at vaccination and delay since vaccine administration. Methods: Cases of invasive meningococcal infection reported to public health authorities and the reference laboratory during the period 1990 to 2008 were obtained to calculate year-and age-specific incidence rates. Multiple sources were used to ascertain the immunization status of cases. Immunization registry data were used to estimate age-specific C-MCV uptake rates in different birth cohorts. Vaccine effectiveness was estimated by Mantel-Haenszel method and logistic regression models. Results: After mass immunization campaign, meningococcal C disease incidence decreased markedly not only in highly vaccinated but also in poorly vaccinated and nonvaccinated birth cohorts. Overall vaccine effectiveness was 87.4% (95% CI: 75.4%-94.2%) with lower protection in children vaccinated <2 years of age and waning of protection of higher magnitude in this age group. Conclusion: Results support the current Canadian recommendation to provide booster vaccination for adolescents.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available