Scott F. Dowell*†
, Cynthia G. Whitney†, Carolyn Wright†, Charles E. Rose†, and Anne Schuchat†
Figure 4. Weekly rates of invasive pneumococcal disease in children (dotted line; ages 0–17 years), and adults (solid line; age >18 years) in the United States, 1996–1998. Weekly numbers of cases from seven active surveillance areas were divided by the age-specific population and multiplied by 52 to give annualized weekly rates.