Emerging Infectious Disease ISSN: 1080-6059

Seasonal Patterns of Invasive Pneumococcal Disease

Scott F. Dowell*†

, Cynthia G. Whitney†, Carolyn Wright†, Charles E. Rose†, and Anne Schuchat†

Author affiliations: *International Emerging Infections Program, Bangkok, Thailand; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA

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Figure 2

Weekly rates of invasive pneumococcal disease in the United States, January 1996–December 1998. Weekly numbers of cases from active surveillance areas in California, Connecticut, Georgia, Maryland, Minnesota, Oregon, and Tennessee were divided by the population under surveillance that year and multiplied by 52 to give annualized weekly rates.

Figure 2. Weekly rates of invasive pneumococcal disease in the United States, January 1996–December 1998. Weekly numbers of cases from active surveillance areas in California, Connecticut, Georgia, Maryland, Minnesota, Oregon, and Tennessee were divided by the population under surveillance that year and multiplied by 52 to give annualized weekly rates.

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