Risk Factors for Group B Streptococcal Infections


About risk factors: Risk factors for Group B Streptococcal Infections are factors that do not seem to be a direct cause of the disease, but seem to be associated in some way. Having a risk factor for Group B Streptococcal Infections makes the chances of getting a condition higher but does not always lead to Group B Streptococcal Infections. Also, the absence of any risk factors or having a protective factor does not necessarily guard you against getting Group B Streptococcal Infections. For general information and a list of risk factors, see the risk center.

Risk factor list: The list of risk factors mentioned for Group B Streptococcal Infections in various sources includes:

Risk factors discussion: Pregnant women with the following conditions are at higher risk of having a baby with GBS disease:

  • previous baby with GBS disease
  • urinary tract infection due to GBS
  • GBS carriage late in pregnancy
  • fever during labor
  • rupture of membranes 18 hours or more before delivery
  • labor or rupture of membranes before 37 weeks

Adults with chronic illnesses (e.g., diabetes mellitus and liver failure), pregnant women, the fetus, and the newborn are at risk. For neonatal disease, risk is higher among infants born to women with GBS colonization, prolonged rupture of membranes or preterm delivery. Rates are substantially higher among blacks and the elderly.2

1. excerpt from Group B Streptococcal Disease (GBS) General: DBMD
2. excerpt from Group B Streptococcal Disease (GBS): DBMD

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