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SYNOPSIS
The 1989 measles outbreak in the province of Quebec has been largely attributed to an incomplete vaccination coverage, despite a 99% vaccination rate.
TITLE
Major measles epidemic in the region of Quebec despite a 99% vaccine coverage
Citation
Boulianne N, De Serres G, Duval B, Joly JR, Meyer F, Déry P, Alary M, Le Hénaff D, Thériault N. Canadian Journal of Public Health. 1991 May-Jun;82(3):189-90.
Summary
The 1989 measles outbreak in the province of Quebec has been largely attributed to an incomplete vaccination coverage. In the Quebec City area (pop. 600,000) 1,363 confirmed cases of measles did occur. A case-control study conducted to evaluate risk factors for measles allowed us to estimate vaccination coverage. The vaccination coverage among cases was at least 84.5%. Vaccination coverage for the total population was 99.0%. Incomplete vaccination coverage is not a valid explanation for the Quebec City measles outbreak.