Introduction
Pneumonia and influenza are significant causes of morbidity and mortality. Together these conditions are ranked as the eighth leading cause of death in the United States. Along with other respiratory conditions, such as the common cold and acute bronchitis, these disorders are substantial contributors to days lost from work and school. The following tables delineate information available from national surveys and statistics on trends in morbidity and mortality attributed to pneumonia and influenza. In addition, vaccine recommendations to prevent pneumonia and influenza are included.