My Pregnancy - Week 36

What is Group B Strep? Practitioners often screen for Group B Strep because it is the most common cause of life-threatening infections in newborns. It can cause pneumonia and meningitis. Group B Strep is a bacterial infection that may be found in a pregnant women's vagina or rectum. 15 to 40 percent of all healthy, adult women carry these bacteria in their vagina or lower intestines.