Key points
- Anyone can get group B Streptococcus (group B strep, GBS) disease.
- Some people are at greater risk than others.
- Being a certain age or having certain medical conditions can put you at increased risk for GBS disease.
- Learn more about who's at increased risk for getting GBS disease.
People at increased risk
Newborns
GBS disease is most common in newborns.
There are factors that can increase a pregnant woman's risk of having a baby who will develop GBS disease, including:
- Testing positive for GBS bacteria late in pregnancy
- Developing a fever during labor
- Having 18 hours or more pass between water breaking and baby's birth
Older adults
Risk increases with age: Adults 65 years or older are at increased risk compared to adults younger than 65 years old.
Conditions that can increase risk
Most adults who get GBS disease have other medical conditions.
Medical conditions that increase risk for GBS disease include:
- Cancer or history of cancer
- Congestive heart failure
- Diabetes
- Heart disease
- Obesity
People not at increased risk
Living with someone who has GBS bacteria doesn't increase a person's risk of getting sick. Learn more about how GBS bacteria spread.