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International Circumpolar Surveillance (ICS) Summary Report, year 2011 data
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  • Corporate Authors:
    National Center for Emerging and Zoonotic Infectious Diseases (U.S.). Division of Division of Preparedness and Emerging Infections. Arctic Investigations Program. ; Public Health Agency of Canada. ;
  • Description:
    International Circumpolar Surveillance (ICS) is a population-based surveillance system for invasive bacterial diseases established in the U.S. Arctic, Northern Canada, Greenland, Iceland, Norway, Finland, and Northern Sweden. Data collection began in 1999 and includes information on disease caused by Streptococcus pneumoniae, Haemophilus influenzae, Neisseria meningitidis, and groups A and B Streptococcus (GAS, GBS). This report reviews the data collected for the year 2011.

    Data on invasive disease with the organism S. pneumoniae are collected from all participating countries. A total of 1,803 cases of invasive pneumococcal disease were identified in 2011. Overall, rates of invasive S. pneumoniae were highest in individuals less than 2 years of age or in persons 65 years and older. Case fatality ratios ranged from 11-40%. Race and ethnicity data are collected only in N. Canada and the U.S. Arctic; rates of invasive pneumococcal disease in Northern Canadian Aboriginals and U.S. Arctic Native populations were 32 and 39 cases per 100,000 population, respectively, which are similar to the 2010 rates in these populations. Pneumonia and bacteremia were the most common clinical presentations; cigarette smoking alcohol abuse, and chronic lung disease were the most common risk factors. The most common S. pneumoniae serotype in Iceland was 14, in Greenland it was serotype 1, and in N. Canada and the U.S. Arctic the most common serotype was 7F.

    Data on invasive disease due to H. influenzae, N. meningitidis, and groups A and B Streptococcus are currently collected in Greenland, Northern Canada, Northern Sweden and the U.S. Arctic; Norway also contributes data on cases of N. meningitidis and H. influenzae. A total of 127 H. influenzae cases, 43 N. meningitidis cases, 90 GAS cases, and 43 GBS cases were reported in 2011. In general, the highest rates of disease for all organisms occurred in N. Canada Aboriginal or Alaska Native persons less than two years of age and persons 65 and older.

    ICS is a cooperative project funded by the Coordinating Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, and by the Public Health Agency of Canada in Ottawa, Canada.

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