Abstract
VOLUME 90, NO. 4 In Quebec, the annual number of reported cases of invasive meningococcal disease (IMD) increased from 37 in 1984 to 124 in 1990. The increase and the emergence of a virulent strain of serogroup C prompted the Ministere de la Sante et des Services sociaux (Provincial Ministry of Health) to immunize all children aged 6 months to 19 years in 1992. The increased incidence of IMD was more pronounced in certain regions of the province than in Montreal. We wanted to assess the completeness of reporting of these infections in the region of Montreal by applying a capture-recapture method.
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