Volume 9, Number 5, May 2003

Seasonal Patterns of Invasive Pneumococcal Disease

Scott F. Dowell,*† Cynthia G. Whitney,† Carolyn Wright,† Charles E. Rose, Jr.,† and Anne Schuchat†
*International Emerging Infections Program, Bangkok, Thailand; and †Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Figure 5. Seasonal variations in U.S. electric utility gas consumption (a) and public construction expenditures (b). Both parameters correlated indirectly with the invasive pneumococcal disease rates (gas consumption: r –0.92 with a 22-month lag; and construction: r –0.84 with a 35-month lag). Data were obtained from the Energy Information Administration and the U.S. Census Bureau, respectively.

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This page last reviewed April 7, 2003

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
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