How common is group B strep disease in newborns?
Group B strep is the most common cause of sepsis (blood infection) and meningitis (infection of the fluid and lining around the brain) in newborns. Group B strep is a frequent cause of newborn pneumonia and is more common than other, more well-known, newborn problems such as rubella, congenital syphilis, and spina bifida. In the year 2001, there were about 1,700 babies in the U.S. less than one week old who got early-onset group B strep disease.
More detailed information about group B strep disease rates can be found at www.cdc.gov/abcs.
How does group B strep disease affect newborns?
About half of the cases of group B strep disease among newborns happen in the first week of life ("early-onset disease"), and most of these cases start a few hours after birth. Sepsis, pneumonia (infection in the lungs), and meningitis (infection of the fluid and lining around the brain) are the most common problems. Premature babies are more at risk of getting a group B strep infection, but most babies who become sick from group B strep are full-term.Group B strep disease may also develop in infants one week to several months after birth ("late-onset disease"). Meningitis is more common with late-onset group B strep disease. Only about half of late-onset group B strep disease among newborns comes from a mother who is a group B strep carrier; the source of infection for others with late-onset group B strep disease can be hard to figure out. Late-onset disease is slightly less common than early-onset disease.
