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 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.

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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