Varicella zoster virus countries. Varicella vaccination has raised concerns in some that the immunity induced by the vaccine may not be lifelong, possibly leaving adults vulnerable to more severe disease as the immunity from their childhood immunization wanes. Vaccine coverage in the United States in the population recommended for vaccination is approaching 90%, with concomitant reductions in the incidence of varicella cases and hospitalizations and deaths due to VZV. So far, clinical data has proved that the vaccine is effective for over 10 years in preventing varicella infection in healthy individuals and when breakthrough infections do occur, illness is typically mild. In 2007,
European Centre for Disease Prevention and Control The office of the Chief Scientist oversees the seven Disease Programmes, the Microbiology Coordination Section and the Scientific Advice Coordination Section. The Disease Programmes focus on specific disease groups: Two shared-resource units – Surveillance and Response Support, and Public Health Capacity and Communication – provide specialist expertise. The Information and Communication Technologies Unit provides infrastructure, application development and support. The Resource Management and Coordination Unit controls ECDC’s human and financial resources. ECDC publishes numerous scientific and technical reports covering various issues related to the prevention and control of communicable diseases. Comprehensive reports from key technical and scientific meetings are also