what is vaginal gbs positive
Pregnant women should be tested, or screened, for group B strep bacteria in her vagina and rectum when she is 35 to 37 weeks pregnant. The test is simple and does not hurt. A sterile swab (âQ-tipâ) is used to collect a sample from the vagina and the rectum and is then sent to a laboratory for testing. About 1 out of every 4 (about 25%) pregnant women carry group B strep bacteria in their rectum or vagina. Those women are considered group B strep positive. A woman may test positive for the bacteria at some times and not others.