While GBS is generally harmless in healthy adults, it may cause stillbirth and serious infections in babies. Getting screened for GBS late in pregnancy – and receiving antibiotic treatment during labor if you're a carrier – greatly reduces your baby's risk of becoming infected. .
What Does Being a GBS Carrier Mean?
Carrying GBS bacteria also does not mean that you are not clean, and it does not mean that you have a sexually transmitted disease. The bacteria are not spread from food, sex, water, or anything that you might have come into contact with. These bacteria can come and go naturally in the body.
The group B strep test is done during pregnancy to identify women who carry this common bacterium.
What are the consequences of early-onset GBS disease?
If you're pregnant, your health care provider will likely recommend a group B strep test during the third trimester. Because you can test positive at certain times and negative at other times, you'll need to repeat the group B strep test each time you're pregnant.