Skip directly to local search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home

Volume 9, Number 5—May 2003

Research

Seasonal Patterns of Invasive Pneumococcal Disease

Scott F. Dowell*†Comments to Author , 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

Main Article

Figure 3

The relationship of invasive pneumococcal disease to photoperiod, temperature, and precipitation in three surveillance areas, grouped by latitude, 1996–1998. Southern surveillance areas were in Georgia and Tennessee (red lines; 33°–35° north latitude), middle areas were in California and Maryland (green lines; 37°–39° north latitude), and northern areas were in Connecticut, Minnesota, and Oregon (blue lines; 41°–45° north latitude). a: Rates of invasive pneumococcal disease; b: hours of darkness

Figure 3. The relationship of invasive pneumococcal disease to photoperiod, temperature, and precipitation in three surveillance areas, grouped by latitude, 1996–1998. Southern surveillance areas were in Georgia and Tennessee (red lines; 33°–35° north latitude), middle areas were in California and Maryland (green lines; 37°–39° north latitude), and northern areas were in Connecticut, Minnesota, and Oregon (blue lines; 41°–45° north latitude). a: Rates of invasive pneumococcal disease; b: hours of darkness calculated for the 15th day of each month; c: mean monthly surface air temperature recorded at weather stations in each of the seven surveillance sites. d: total monthly precipitation recorded at weather stations in each of the seven surveillance sites. Pneumococcal disease correlated directly with photoperiod (r 0.85 with a 5-week lag; p<0.0001), indirectly with temperature (r –0.82 with a 1-week lag; p<0.0001), and poorly with precipitation (r 0 to <0.3).

Main Article

Top of Page

 

Past Issues

Select a Past Issue:

World Malaria Day - April 25, 2014 - Invest in the future, defeat malaria

20th Anniversary - National Infant Immunization Week - Immunization. Power to Protect.

Art in Science - Selections from Emerging Infectious Diseases
Now available for order



CDC 24/7 – Saving Lives, Protecting People, Saving Money. Learn More About How CDC Works For You…

USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO