Epidemiology of Invasive Group B Streptococcal Disease in the United States, 1999-2005.

The article presents a study investigating disease trends related to group B Streptococcal disease as a cause of mortality in newborns and the elderly in the U.S. The objective of the study was to reveal potential benefits from vaccination and inform evolving prevention strategies. The study measured age- and race-specific incidence of invasive group B streptococcal disease through analysis of population-based surveillance in 10 U.S. states. Researchers reported a decrease in the incidence of group B streptococcal disease among infants from birth to 6 days in 2003-2005 relative to 1999-2001. However, a significant increase in the disease in adults was reported during the same period.