International Circumpolar Surveillance System for Invasive Pneumococcal Disease, 1999–2005

摘要

The International Circumpolar Surveillance System is a population-based surveillance network for invasive bacterial disease in the Arctic. The 7-valent pneumococcal conjugate vaccine (PCV7) was introduced for routine infant vaccina-tion in Alaska (2001), northern Canada (2002–2006), and Norway (2006). Data for invasive pneumococcal disease (IPD) were analyzed to identify clinical fi ndings, disease rates, serotype distribution, and antimicrobial drug suscepti-bility; 11,244 IPD cases were reported. Pneumonia and bac-teremia were common clinical fi ndings. Rates of IPD among indigenous persons in Alaska and northern Canada were 43 and 38 cases per 100,000 population, respectively. Rates in children 80% after routine vaccination. IPD rates are high among indigenous persons and children in Arctic coun-tries. After vaccine introduction, IPD caused by non-PCV7 serotypes increased in Alaska