Testing for Group B Strep

What is GBS?

Most pregnant women are screened for group B streptococcus (GBS) during the third trimester. It is a bacteria that can live within humans and is generally harmless to adults.About 25% of women are carriers of this bacteria and don't even know it.

Effects on the baby

Babies who get infected with GBS become critically ill. During birth as the baby passes through the vagina it comes into contact with the bacteria, making it more likley for the baby to get Group B Strep. To prevent this from happening women who test positive or who have had a previous baby with Group B Strep will be given IV antibiotics during labor. If treated 98-99% of all babies born to infected mothers will not become infected.