what is gbs pregnancy

Group B streptococcus (GBS) is a type of bacteria that can cause infection. It is usually found in the vagina and rectum of women. About 1 in 4 pregnant women carry GBS bacteria in their body, but most people who have it dont know that they do because it usually does not cause serious illness. However, GBS can be harmful to newborns if passed from the mother during labor and childbirth. This is rare and happens to 1 or 2 babies out of 100 when the mother does not receive treatment with antibiotics during labor. The chance of a newborn getting sick is much lower when the mother receives treatment. Pregnant women should get tested for GBS bacteria when they are 36 through 37 weeks pregnant. If a woman tests positive for GBS, her healthcare provider can give her treatment during labor and birth that protects her baby from GBS.